71661720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:745

約数の個数: 128

約数和(自身を含む): 235146240

約数和(自身を除く): 163484520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 71, 78, 104, 120, 130, 142, 156, 195, 213, 260, 284, 312, 355, 390, 426, 520, 568, 647, 710, 780, 852, 923, 1065, 1294, 1420, 1560, 1704, 1846, 1941, 2130, 2588, 2769, 2840, 3235, 3692, 3882, 4260, 4615, 5176, 5538, 6470, 7384, 7764, 8411, 8520, 9230, 9705, 11076, 12940, 13845, 15528, 16822, 18460, 19410, 22152, 25233, 25880, 27690, 33644, 36920, 38820, 42055, 45937, 50466, 55380, 67288, 77640, 84110, 91874, 100932, 110760, 126165, 137811, 168220, 183748, 201864, 229685, 252330, 275622, 336440, 367496, 459370, 504660, 551244, 597181, 689055, 918740, 1009320, 1102488, 1194362, 1378110, 1791543, 1837480, 2388724, 2756220, 2985905, 3583086, 4777448, 5512440, 5971810, 7166172, 8957715, 11943620, 14332344, 17915430, 23887240, 35830860, 71661720]

約数ペア:

[(1, 71661720), (2, 35830860), (3, 23887240), (4, 17915430), (5, 14332344), (6, 11943620), (8, 8957715), (10, 7166172), (12, 5971810), (13, 5512440), (15, 4777448), (20, 3583086), (24, 2985905), (26, 2756220), (30, 2388724), (39, 1837480), (40, 1791543), (52, 1378110), (60, 1194362), (65, 1102488), (71, 1009320), (78, 918740), (104, 689055), (120, 597181), (130, 551244), (142, 504660), (156, 459370), (195, 367496), (213, 336440), (260, 275622), (284, 252330), (312, 229685), (355, 201864), (390, 183748), (426, 168220), (520, 137811), (568, 126165), (647, 110760), (710, 100932), (780, 91874), (852, 84110), (923, 77640), (1065, 67288), (1294, 55380), (1420, 50466), (1560, 45937), (1704, 42055), (1846, 38820), (1941, 36920), (2130, 33644), (2588, 27690), (2769, 25880), (2840, 25233), (3235, 22152), (3692, 19410), (3882, 18460), (4260, 16822), (4615, 15528), (5176, 13845), (5538, 12940), (6470, 11076), (7384, 9705), (7764, 9230), (8411, 8520)]