1991468640

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^2\times {\mathrm{211}}^1$

素因数の和:342

約数の個数: 288

約数和(自身を含む): 7341739776

約数和(自身を除く): 5350271136

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 53, 56, 60, 70, 80, 84, 96, 105, 106, 112, 120, 140, 159, 160, 168, 210, 211, 212, 224, 240, 265, 280, 318, 336, 371, 420, 422, 424, 480, 530, 560, 633, 636, 672, 742, 795, 840, 844, 848, 1055, 1060, 1113, 1120, 1266, 1272, 1477, 1484, 1590, 1680, 1688, 1696, 1855, 2110, 2120, 2226, 2532, 2544, 2809, 2954, 2968, 3165, 3180, 3360, 3376, 3710, 4220, 4240, 4431, 4452, 5064, 5088, 5565, 5618, 5908, 5936, 6330, 6360, 6752, 7385, 7420, 8427, 8440, 8480, 8862, 8904, 10128, 11130, 11183, 11236, 11816, 11872, 12660, 12720, 14045, 14770, 14840, 16854, 16880, 17724, 17808, 19663, 20256, 22155, 22260, 22366, 22472, 23632, 25320, 25440, 28090, 29540, 29680, 33549, 33708, 33760, 35448, 35616, 39326, 42135, 44310, 44520, 44732, 44944, 47264, 50640, 55915, 56180, 58989, 59080, 59360, 67098, 67416, 70896, 78281, 78652, 84270, 88620, 89040, 89464, 89888, 98315, 101280, 111830, 112360, 117978, 118160, 134196, 134832, 141792, 156562, 157304, 167745, 168540, 177240, 178080, 178928, 196630, 223660, 224720, 234843, 235956, 236320, 268392, 269664, 294945, 313124, 314608, 335490, 337080, 354480, 357856, 391405, 393260, 447320, 449440, 469686, 471912, 536784, 589890, 592699, 626248, 629216, 670980, 674160, 708960, 782810, 786520, 894640, 939372, 943824, 1073568, 1174215, 1179780, 1185398, 1252496, 1341960, 1348320, 1565620, 1573040, 1778097, 1789280, 1878744, 1887648, 2348430, 2359560, 2370796, 2504992, 2683920, 2963495, 3131240, 3146080, 3556194, 3757488, 4148893, 4696860, 4719120, 4741592, 5367840, 5926990, 6262480, 7112388, 7514976, 8297786, 8890485, 9393720, 9438240, 9483184, 11853980, 12446679, 12524960, 14224776, 16595572, 17780970, 18787440, 18966368, 20744465, 23707960, 24893358, 28449552, 33191144, 35561940, 37574880, 41488930, 47415920, 49786716, 56899104, 62233395, 66382288, 71123880, 82977860, 94831840, 99573432, 124466790, 132764576, 142247760, 165955720, 199146864, 248933580, 284495520, 331911440, 398293728, 497867160, 663822880, 995734320, 1991468640]

約数ペア:

[(1, 1991468640), (2, 995734320), (3, 663822880), (4, 497867160), (5, 398293728), (6, 331911440), (7, 284495520), (8, 248933580), (10, 199146864), (12, 165955720), (14, 142247760), (15, 132764576), (16, 124466790), (20, 99573432), (21, 94831840), (24, 82977860), (28, 71123880), (30, 66382288), (32, 62233395), (35, 56899104), (40, 49786716), (42, 47415920), (48, 41488930), (53, 37574880), (56, 35561940), (60, 33191144), (70, 28449552), (80, 24893358), (84, 23707960), (96, 20744465), (105, 18966368), (106, 18787440), (112, 17780970), (120, 16595572), (140, 14224776), (159, 12524960), (160, 12446679), (168, 11853980), (210, 9483184), (211, 9438240), (212, 9393720), (224, 8890485), (240, 8297786), (265, 7514976), (280, 7112388), (318, 6262480), (336, 5926990), (371, 5367840), (420, 4741592), (422, 4719120), (424, 4696860), (480, 4148893), (530, 3757488), (560, 3556194), (633, 3146080), (636, 3131240), (672, 2963495), (742, 2683920), (795, 2504992), (840, 2370796), (844, 2359560), (848, 2348430), (1055, 1887648), (1060, 1878744), (1113, 1789280), (1120, 1778097), (1266, 1573040), (1272, 1565620), (1477, 1348320), (1484, 1341960), (1590, 1252496), (1680, 1185398), (1688, 1179780), (1696, 1174215), (1855, 1073568), (2110, 943824), (2120, 939372), (2226, 894640), (2532, 786520), (2544, 782810), (2809, 708960), (2954, 674160), (2968, 670980), (3165, 629216), (3180, 626248), (3360, 592699), (3376, 589890), (3710, 536784), (4220, 471912), (4240, 469686), (4431, 449440), (4452, 447320), (5064, 393260), (5088, 391405), (5565, 357856), (5618, 354480), (5908, 337080), (5936, 335490), (6330, 314608), (6360, 313124), (6752, 294945), (7385, 269664), (7420, 268392), (8427, 236320), (8440, 235956), (8480, 234843), (8862, 224720), (8904, 223660), (10128, 196630), (11130, 178928), (11183, 178080), (11236, 177240), (11816, 168540), (11872, 167745), (12660, 157304), (12720, 156562), (14045, 141792), (14770, 134832), (14840, 134196), (16854, 118160), (16880, 117978), (17724, 112360), (17808, 111830), (19663, 101280), (20256, 98315), (22155, 89888), (22260, 89464), (22366, 89040), (22472, 88620), (23632, 84270), (25320, 78652), (25440, 78281), (28090, 70896), (29540, 67416), (29680, 67098), (33549, 59360), (33708, 59080), (33760, 58989), (35448, 56180), (35616, 55915), (39326, 50640), (42135, 47264), (44310, 44944), (44520, 44732)]