8209960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{397}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 20632320

約数和(自身を除く): 12422360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 397, 440, 470, 517, 794, 940, 1034, 1588, 1880, 1985, 2068, 2585, 3176, 3970, 4136, 4367, 5170, 7940, 8734, 10340, 15880, 17468, 18659, 20680, 21835, 34936, 37318, 43670, 74636, 87340, 93295, 149272, 174680, 186590, 205249, 373180, 410498, 746360, 820996, 1026245, 1641992, 2052490, 4104980, 8209960]

約数ペア:

[(1, 8209960), (2, 4104980), (4, 2052490), (5, 1641992), (8, 1026245), (10, 820996), (11, 746360), (20, 410498), (22, 373180), (40, 205249), (44, 186590), (47, 174680), (55, 149272), (88, 93295), (94, 87340), (110, 74636), (188, 43670), (220, 37318), (235, 34936), (376, 21835), (397, 20680), (440, 18659), (470, 17468), (517, 15880), (794, 10340), (940, 8734), (1034, 7940), (1588, 5170), (1880, 4367), (1985, 4136), (2068, 3970), (2585, 3176)]