256291560

素因数分解:

$2^3\times 3^3\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{167}}^1$

素因数の和:230

約数の個数: 384

約数和(自身を含む): 1034208000

約数和(自身を除く): 777916440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 29, 30, 35, 36, 40, 42, 45, 49, 54, 56, 58, 60, 63, 70, 72, 84, 87, 90, 98, 105, 108, 116, 120, 126, 135, 140, 145, 147, 167, 168, 174, 180, 189, 196, 203, 210, 216, 232, 245, 252, 261, 270, 280, 290, 294, 315, 334, 348, 360, 378, 392, 406, 420, 435, 441, 490, 501, 504, 522, 540, 580, 588, 609, 630, 668, 696, 735, 756, 783, 812, 835, 840, 870, 882, 945, 980, 1002, 1015, 1044, 1080, 1160, 1169, 1176, 1218, 1260, 1305, 1323, 1336, 1421, 1470, 1503, 1512, 1566, 1624, 1670, 1740, 1764, 1827, 1890, 1960, 2004, 2030, 2088, 2205, 2338, 2436, 2505, 2520, 2610, 2646, 2842, 2940, 3006, 3045, 3132, 3340, 3480, 3507, 3528, 3654, 3780, 3915, 4008, 4060, 4263, 4410, 4509, 4676, 4843, 4872, 5010, 5220, 5292, 5481, 5684, 5845, 5880, 6012, 6090, 6264, 6615, 6680, 7014, 7105, 7308, 7515, 7560, 7830, 8120, 8183, 8526, 8820, 9018, 9135, 9352, 9686, 10020, 10440, 10521, 10584, 10962, 11368, 11690, 12024, 12180, 12789, 13230, 14028, 14210, 14529, 14616, 15030, 15660, 16366, 17052, 17535, 17640, 18036, 18270, 19372, 20040, 21042, 21315, 21924, 22545, 23380, 24215, 24360, 24549, 25578, 26460, 27405, 28056, 28420, 29058, 30060, 31320, 31563, 32732, 33901, 34104, 35070, 36072, 36540, 38367, 38744, 40915, 42084, 42630, 43587, 43848, 45090, 46760, 48430, 49098, 51156, 52605, 52920, 54810, 56840, 58116, 60120, 63126, 63945, 65464, 67802, 70140, 72645, 73080, 73647, 76734, 81830, 84168, 85260, 87174, 90180, 96860, 98196, 101703, 102312, 105210, 109620, 116232, 122745, 126252, 127890, 130761, 135604, 140280, 145290, 147294, 153468, 157815, 163660, 169505, 170520, 174348, 180360, 191835, 193720, 196392, 203406, 210420, 217935, 219240, 220941, 237307, 245490, 252504, 255780, 261522, 271208, 290580, 294588, 305109, 306936, 315630, 327320, 339010, 348696, 368235, 383670, 406812, 420840, 435870, 441882, 474614, 490980, 508515, 511560, 523044, 581160, 589176, 610218, 631260, 653805, 678020, 711921, 736470, 767340, 813624, 871740, 883764, 915327, 949228, 981960, 1017030, 1046088, 1104705, 1186535, 1220436, 1262520, 1307610, 1356040, 1423842, 1472940, 1525545, 1534680, 1743480, 1767528, 1830654, 1898456, 2034060, 2135763, 2209410, 2373070, 2440872, 2615220, 2847684, 2945880, 3051090, 3559605, 3661308, 4068120, 4271526, 4418820, 4576635, 4746140, 5230440, 5695368, 6102180, 6407289, 7119210, 7322616, 8543052, 8837640, 9153270, 9492280, 10678815, 12204360, 12814578, 14238420, 17086104, 18306540, 21357630, 25629156, 28476840, 32036445, 36613080, 42715260, 51258312, 64072890, 85430520, 128145780, 256291560]

約数ペア:

[(1, 256291560), (2, 128145780), (3, 85430520), (4, 64072890), (5, 51258312), (6, 42715260), (7, 36613080), (8, 32036445), (9, 28476840), (10, 25629156), (12, 21357630), (14, 18306540), (15, 17086104), (18, 14238420), (20, 12814578), (21, 12204360), (24, 10678815), (27, 9492280), (28, 9153270), (29, 8837640), (30, 8543052), (35, 7322616), (36, 7119210), (40, 6407289), (42, 6102180), (45, 5695368), (49, 5230440), (54, 4746140), (56, 4576635), (58, 4418820), (60, 4271526), (63, 4068120), (70, 3661308), (72, 3559605), (84, 3051090), (87, 2945880), (90, 2847684), (98, 2615220), (105, 2440872), (108, 2373070), (116, 2209410), (120, 2135763), (126, 2034060), (135, 1898456), (140, 1830654), (145, 1767528), (147, 1743480), (167, 1534680), (168, 1525545), (174, 1472940), (180, 1423842), (189, 1356040), (196, 1307610), (203, 1262520), (210, 1220436), (216, 1186535), (232, 1104705), (245, 1046088), (252, 1017030), (261, 981960), (270, 949228), (280, 915327), (290, 883764), (294, 871740), (315, 813624), (334, 767340), (348, 736470), (360, 711921), (378, 678020), (392, 653805), (406, 631260), (420, 610218), (435, 589176), (441, 581160), (490, 523044), (501, 511560), (504, 508515), (522, 490980), (540, 474614), (580, 441882), (588, 435870), (609, 420840), (630, 406812), (668, 383670), (696, 368235), (735, 348696), (756, 339010), (783, 327320), (812, 315630), (835, 306936), (840, 305109), (870, 294588), (882, 290580), (945, 271208), (980, 261522), (1002, 255780), (1015, 252504), (1044, 245490), (1080, 237307), (1160, 220941), (1169, 219240), (1176, 217935), (1218, 210420), (1260, 203406), (1305, 196392), (1323, 193720), (1336, 191835), (1421, 180360), (1470, 174348), (1503, 170520), (1512, 169505), (1566, 163660), (1624, 157815), (1670, 153468), (1740, 147294), (1764, 145290), (1827, 140280), (1890, 135604), (1960, 130761), (2004, 127890), (2030, 126252), (2088, 122745), (2205, 116232), (2338, 109620), (2436, 105210), (2505, 102312), (2520, 101703), (2610, 98196), (2646, 96860), (2842, 90180), (2940, 87174), (3006, 85260), (3045, 84168), (3132, 81830), (3340, 76734), (3480, 73647), (3507, 73080), (3528, 72645), (3654, 70140), (3780, 67802), (3915, 65464), (4008, 63945), (4060, 63126), (4263, 60120), (4410, 58116), (4509, 56840), (4676, 54810), (4843, 52920), (4872, 52605), (5010, 51156), (5220, 49098), (5292, 48430), (5481, 46760), (5684, 45090), (5845, 43848), (5880, 43587), (6012, 42630), (6090, 42084), (6264, 40915), (6615, 38744), (6680, 38367), (7014, 36540), (7105, 36072), (7308, 35070), (7515, 34104), (7560, 33901), (7830, 32732), (8120, 31563), (8183, 31320), (8526, 30060), (8820, 29058), (9018, 28420), (9135, 28056), (9352, 27405), (9686, 26460), (10020, 25578), (10440, 24549), (10521, 24360), (10584, 24215), (10962, 23380), (11368, 22545), (11690, 21924), (12024, 21315), (12180, 21042), (12789, 20040), (13230, 19372), (14028, 18270), (14210, 18036), (14529, 17640), (14616, 17535), (15030, 17052), (15660, 16366)]