8700340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:648

約数の個数: 48

約数和(自身を含む): 20248704

約数和(自身を除く): 11548364

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 557, 710, 781, 1114, 1420, 1562, 2228, 2785, 3124, 3905, 5570, 6127, 7810, 11140, 12254, 15620, 24508, 30635, 39547, 61270, 79094, 122540, 158188, 197735, 395470, 435017, 790940, 870034, 1740068, 2175085, 4350170, 8700340]

約数ペア:

[(1, 8700340), (2, 4350170), (4, 2175085), (5, 1740068), (10, 870034), (11, 790940), (20, 435017), (22, 395470), (44, 197735), (55, 158188), (71, 122540), (110, 79094), (142, 61270), (220, 39547), (284, 30635), (355, 24508), (557, 15620), (710, 12254), (781, 11140), (1114, 7810), (1420, 6127), (1562, 5570), (2228, 3905), (2785, 3124)]