256917960

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{631}}^1$

素因数の和:693

約数の個数: 256

約数和(自身を含む): 955584000

約数和(自身を除く): 698666040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 29, 30, 36, 39, 40, 45, 52, 54, 58, 60, 65, 72, 78, 87, 90, 104, 108, 116, 117, 120, 130, 135, 145, 156, 174, 180, 195, 216, 232, 234, 260, 261, 270, 290, 312, 348, 351, 360, 377, 390, 435, 468, 520, 522, 540, 580, 585, 631, 696, 702, 754, 780, 783, 870, 936, 1044, 1080, 1131, 1160, 1170, 1262, 1305, 1404, 1508, 1560, 1566, 1740, 1755, 1885, 1893, 2088, 2262, 2340, 2524, 2610, 2808, 3016, 3132, 3155, 3393, 3480, 3510, 3770, 3786, 3915, 4524, 4680, 5048, 5220, 5655, 5679, 6264, 6310, 6786, 7020, 7540, 7572, 7830, 8203, 9048, 9465, 10179, 10440, 11310, 11358, 12620, 13572, 14040, 15080, 15144, 15660, 16406, 16965, 17037, 18299, 18930, 20358, 22620, 22716, 24609, 25240, 27144, 28395, 31320, 32812, 33930, 34074, 36598, 37860, 40716, 41015, 45240, 45432, 49218, 50895, 54897, 56790, 65624, 67860, 68148, 73196, 73827, 75720, 81432, 82030, 85185, 91495, 98436, 101790, 109794, 113580, 123045, 135720, 136296, 146392, 147654, 164060, 164691, 170370, 182990, 196872, 203580, 219588, 221481, 227160, 237887, 246090, 274485, 295308, 328120, 329382, 340740, 365980, 369135, 407160, 439176, 442962, 475774, 492180, 494073, 548970, 590616, 658764, 681480, 713661, 731960, 738270, 823455, 885924, 951548, 984360, 988146, 1097940, 1107405, 1189435, 1317528, 1427322, 1476540, 1646910, 1771848, 1903096, 1976292, 2140983, 2195880, 2214810, 2378870, 2470365, 2854644, 2953080, 3293820, 3568305, 3952584, 4281966, 4429620, 4757740, 4940730, 5709288, 6422949, 6587640, 7136610, 8563932, 8859240, 9515480, 9881460, 10704915, 12845898, 14273220, 17127864, 19762920, 21409830, 25691796, 28546440, 32114745, 42819660, 51383592, 64229490, 85639320, 128458980, 256917960]

約数ペア:

[(1, 256917960), (2, 128458980), (3, 85639320), (4, 64229490), (5, 51383592), (6, 42819660), (8, 32114745), (9, 28546440), (10, 25691796), (12, 21409830), (13, 19762920), (15, 17127864), (18, 14273220), (20, 12845898), (24, 10704915), (26, 9881460), (27, 9515480), (29, 8859240), (30, 8563932), (36, 7136610), (39, 6587640), (40, 6422949), (45, 5709288), (52, 4940730), (54, 4757740), (58, 4429620), (60, 4281966), (65, 3952584), (72, 3568305), (78, 3293820), (87, 2953080), (90, 2854644), (104, 2470365), (108, 2378870), (116, 2214810), (117, 2195880), (120, 2140983), (130, 1976292), (135, 1903096), (145, 1771848), (156, 1646910), (174, 1476540), (180, 1427322), (195, 1317528), (216, 1189435), (232, 1107405), (234, 1097940), (260, 988146), (261, 984360), (270, 951548), (290, 885924), (312, 823455), (348, 738270), (351, 731960), (360, 713661), (377, 681480), (390, 658764), (435, 590616), (468, 548970), (520, 494073), (522, 492180), (540, 475774), (580, 442962), (585, 439176), (631, 407160), (696, 369135), (702, 365980), (754, 340740), (780, 329382), (783, 328120), (870, 295308), (936, 274485), (1044, 246090), (1080, 237887), (1131, 227160), (1160, 221481), (1170, 219588), (1262, 203580), (1305, 196872), (1404, 182990), (1508, 170370), (1560, 164691), (1566, 164060), (1740, 147654), (1755, 146392), (1885, 136296), (1893, 135720), (2088, 123045), (2262, 113580), (2340, 109794), (2524, 101790), (2610, 98436), (2808, 91495), (3016, 85185), (3132, 82030), (3155, 81432), (3393, 75720), (3480, 73827), (3510, 73196), (3770, 68148), (3786, 67860), (3915, 65624), (4524, 56790), (4680, 54897), (5048, 50895), (5220, 49218), (5655, 45432), (5679, 45240), (6264, 41015), (6310, 40716), (6786, 37860), (7020, 36598), (7540, 34074), (7572, 33930), (7830, 32812), (8203, 31320), (9048, 28395), (9465, 27144), (10179, 25240), (10440, 24609), (11310, 22716), (11358, 22620), (12620, 20358), (13572, 18930), (14040, 18299), (15080, 17037), (15144, 16965), (15660, 16406)]