81442920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:164

約数の個数: 256

約数和(自身を含む): 289578240

約数和(自身を除く): 208135320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 24, 26, 30, 34, 37, 39, 40, 51, 52, 60, 65, 68, 74, 78, 83, 85, 102, 104, 111, 120, 130, 136, 148, 156, 166, 170, 185, 195, 204, 221, 222, 249, 255, 260, 296, 312, 332, 340, 370, 390, 408, 415, 442, 444, 481, 498, 510, 520, 555, 629, 663, 664, 680, 740, 780, 830, 884, 888, 962, 996, 1020, 1079, 1105, 1110, 1245, 1258, 1326, 1411, 1443, 1480, 1560, 1660, 1768, 1887, 1924, 1992, 2040, 2158, 2210, 2220, 2405, 2490, 2516, 2652, 2822, 2886, 3071, 3145, 3237, 3315, 3320, 3774, 3848, 4233, 4316, 4420, 4440, 4810, 4980, 5032, 5304, 5395, 5644, 5772, 6142, 6290, 6474, 6630, 7055, 7215, 7548, 8177, 8466, 8632, 8840, 9213, 9435, 9620, 9960, 10790, 11288, 11544, 12284, 12580, 12948, 13260, 14110, 14430, 15096, 15355, 16185, 16354, 16932, 18343, 18426, 18870, 19240, 21165, 21580, 24531, 24568, 25160, 25896, 26520, 28220, 28860, 30710, 32370, 32708, 33864, 36686, 36852, 37740, 39923, 40885, 42330, 43160, 46065, 49062, 52207, 55029, 56440, 57720, 61420, 64740, 65416, 73372, 73704, 75480, 79846, 81770, 84660, 91715, 92130, 98124, 104414, 110058, 119769, 122655, 122840, 129480, 146744, 156621, 159692, 163540, 169320, 183430, 184260, 196248, 199615, 208828, 220116, 239538, 245310, 261035, 275145, 313242, 319384, 327080, 366860, 368520, 399230, 417656, 440232, 479076, 490620, 522070, 550290, 598845, 626484, 678691, 733720, 783105, 798460, 958152, 981240, 1044140, 1100580, 1197690, 1252968, 1357382, 1566210, 1596920, 2036073, 2088280, 2201160, 2395380, 2714764, 3132420, 3393455, 4072146, 4790760, 5429528, 6264840, 6786910, 8144292, 10180365, 13573820, 16288584, 20360730, 27147640, 40721460, 81442920]

約数ペア:

[(1, 81442920), (2, 40721460), (3, 27147640), (4, 20360730), (5, 16288584), (6, 13573820), (8, 10180365), (10, 8144292), (12, 6786910), (13, 6264840), (15, 5429528), (17, 4790760), (20, 4072146), (24, 3393455), (26, 3132420), (30, 2714764), (34, 2395380), (37, 2201160), (39, 2088280), (40, 2036073), (51, 1596920), (52, 1566210), (60, 1357382), (65, 1252968), (68, 1197690), (74, 1100580), (78, 1044140), (83, 981240), (85, 958152), (102, 798460), (104, 783105), (111, 733720), (120, 678691), (130, 626484), (136, 598845), (148, 550290), (156, 522070), (166, 490620), (170, 479076), (185, 440232), (195, 417656), (204, 399230), (221, 368520), (222, 366860), (249, 327080), (255, 319384), (260, 313242), (296, 275145), (312, 261035), (332, 245310), (340, 239538), (370, 220116), (390, 208828), (408, 199615), (415, 196248), (442, 184260), (444, 183430), (481, 169320), (498, 163540), (510, 159692), (520, 156621), (555, 146744), (629, 129480), (663, 122840), (664, 122655), (680, 119769), (740, 110058), (780, 104414), (830, 98124), (884, 92130), (888, 91715), (962, 84660), (996, 81770), (1020, 79846), (1079, 75480), (1105, 73704), (1110, 73372), (1245, 65416), (1258, 64740), (1326, 61420), (1411, 57720), (1443, 56440), (1480, 55029), (1560, 52207), (1660, 49062), (1768, 46065), (1887, 43160), (1924, 42330), (1992, 40885), (2040, 39923), (2158, 37740), (2210, 36852), (2220, 36686), (2405, 33864), (2490, 32708), (2516, 32370), (2652, 30710), (2822, 28860), (2886, 28220), (3071, 26520), (3145, 25896), (3237, 25160), (3315, 24568), (3320, 24531), (3774, 21580), (3848, 21165), (4233, 19240), (4316, 18870), (4420, 18426), (4440, 18343), (4810, 16932), (4980, 16354), (5032, 16185), (5304, 15355), (5395, 15096), (5644, 14430), (5772, 14110), (6142, 13260), (6290, 12948), (6474, 12580), (6630, 12284), (7055, 11544), (7215, 11288), (7548, 10790), (8177, 9960), (8466, 9620), (8632, 9435), (8840, 9213)]