71459840

素因数分解:

$2^{10}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{821}}^1$

素因数の和:863

約数の個数: 88

約数和(自身を含む): 181724472

約数和(自身を除く): 110264632

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 512, 544, 640, 680, 821, 1024, 1088, 1280, 1360, 1642, 2176, 2560, 2720, 3284, 4105, 4352, 5120, 5440, 6568, 8210, 8704, 10880, 13136, 13957, 16420, 17408, 21760, 26272, 27914, 32840, 43520, 52544, 55828, 65680, 69785, 87040, 105088, 111656, 131360, 139570, 210176, 223312, 262720, 279140, 420352, 446624, 525440, 558280, 840704, 893248, 1050880, 1116560, 1786496, 2101760, 2233120, 3572992, 4203520, 4466240, 7145984, 8932480, 14291968, 17864960, 35729920, 71459840]

約数ペア:

[(1, 71459840), (2, 35729920), (4, 17864960), (5, 14291968), (8, 8932480), (10, 7145984), (16, 4466240), (17, 4203520), (20, 3572992), (32, 2233120), (34, 2101760), (40, 1786496), (64, 1116560), (68, 1050880), (80, 893248), (85, 840704), (128, 558280), (136, 525440), (160, 446624), (170, 420352), (256, 279140), (272, 262720), (320, 223312), (340, 210176), (512, 139570), (544, 131360), (640, 111656), (680, 105088), (821, 87040), (1024, 69785), (1088, 65680), (1280, 55828), (1360, 52544), (1642, 43520), (2176, 32840), (2560, 27914), (2720, 26272), (3284, 21760), (4105, 17408), (4352, 16420), (5120, 13957), (5440, 13136), (6568, 10880), (8210, 8704)]