256479480

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1$

素因数の和:499

約数の個数: 256

約数和(自身を含む): 933120000

約数和(自身を除く): 676640520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 29, 30, 36, 38, 40, 45, 54, 57, 58, 60, 72, 76, 87, 90, 95, 108, 114, 116, 120, 135, 145, 152, 171, 174, 180, 190, 216, 228, 232, 261, 270, 285, 290, 342, 348, 360, 380, 431, 435, 456, 513, 522, 540, 551, 570, 580, 684, 696, 760, 783, 855, 862, 870, 1026, 1044, 1080, 1102, 1140, 1160, 1293, 1305, 1368, 1566, 1653, 1710, 1724, 1740, 2052, 2088, 2155, 2204, 2280, 2565, 2586, 2610, 2755, 3132, 3306, 3420, 3448, 3480, 3879, 3915, 4104, 4310, 4408, 4959, 5130, 5172, 5220, 5510, 6264, 6465, 6612, 6840, 7758, 7830, 8189, 8265, 8620, 9918, 10260, 10344, 10440, 11020, 11637, 12499, 12930, 13224, 14877, 15516, 15660, 16378, 16530, 17240, 19395, 19836, 20520, 22040, 23274, 24567, 24795, 24998, 25860, 29754, 31032, 31320, 32756, 33060, 37497, 38790, 39672, 40945, 46548, 49134, 49590, 49996, 51720, 58185, 59508, 62495, 65512, 66120, 73701, 74385, 74994, 77580, 81890, 93096, 98268, 99180, 99992, 112491, 116370, 119016, 122835, 124990, 147402, 148770, 149988, 155160, 163780, 187485, 196536, 198360, 221103, 224982, 232740, 237481, 245670, 249980, 294804, 297540, 299976, 327560, 337473, 368505, 374970, 442206, 449964, 465480, 474962, 491340, 499960, 562455, 589608, 595080, 674946, 712443, 737010, 749940, 884412, 899928, 949924, 982680, 1105515, 1124910, 1187405, 1349892, 1424886, 1474020, 1499880, 1687365, 1768824, 1899848, 2137329, 2211030, 2249820, 2374810, 2699784, 2849772, 2948040, 3374730, 3562215, 4274658, 4422060, 4499640, 4749620, 5699544, 6411987, 6749460, 7124430, 8549316, 8844120, 9499240, 10686645, 12823974, 13498920, 14248860, 17098632, 21373290, 25647948, 28497720, 32059935, 42746580, 51295896, 64119870, 85493160, 128239740, 256479480]

約数ペア:

[(1, 256479480), (2, 128239740), (3, 85493160), (4, 64119870), (5, 51295896), (6, 42746580), (8, 32059935), (9, 28497720), (10, 25647948), (12, 21373290), (15, 17098632), (18, 14248860), (19, 13498920), (20, 12823974), (24, 10686645), (27, 9499240), (29, 8844120), (30, 8549316), (36, 7124430), (38, 6749460), (40, 6411987), (45, 5699544), (54, 4749620), (57, 4499640), (58, 4422060), (60, 4274658), (72, 3562215), (76, 3374730), (87, 2948040), (90, 2849772), (95, 2699784), (108, 2374810), (114, 2249820), (116, 2211030), (120, 2137329), (135, 1899848), (145, 1768824), (152, 1687365), (171, 1499880), (174, 1474020), (180, 1424886), (190, 1349892), (216, 1187405), (228, 1124910), (232, 1105515), (261, 982680), (270, 949924), (285, 899928), (290, 884412), (342, 749940), (348, 737010), (360, 712443), (380, 674946), (431, 595080), (435, 589608), (456, 562455), (513, 499960), (522, 491340), (540, 474962), (551, 465480), (570, 449964), (580, 442206), (684, 374970), (696, 368505), (760, 337473), (783, 327560), (855, 299976), (862, 297540), (870, 294804), (1026, 249980), (1044, 245670), (1080, 237481), (1102, 232740), (1140, 224982), (1160, 221103), (1293, 198360), (1305, 196536), (1368, 187485), (1566, 163780), (1653, 155160), (1710, 149988), (1724, 148770), (1740, 147402), (2052, 124990), (2088, 122835), (2155, 119016), (2204, 116370), (2280, 112491), (2565, 99992), (2586, 99180), (2610, 98268), (2755, 93096), (3132, 81890), (3306, 77580), (3420, 74994), (3448, 74385), (3480, 73701), (3879, 66120), (3915, 65512), (4104, 62495), (4310, 59508), (4408, 58185), (4959, 51720), (5130, 49996), (5172, 49590), (5220, 49134), (5510, 46548), (6264, 40945), (6465, 39672), (6612, 38790), (6840, 37497), (7758, 33060), (7830, 32756), (8189, 31320), (8265, 31032), (8620, 29754), (9918, 25860), (10260, 24998), (10344, 24795), (10440, 24567), (11020, 23274), (11637, 22040), (12499, 20520), (12930, 19836), (13224, 19395), (14877, 17240), (15516, 16530), (15660, 16378)]