639114874

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{919}}^1\times {\mathrm{3907}}^1$

素因数の和:4917

約数の個数: 16

約数和(自身を含む): 970747200

約数和(自身を除く): 331632326

約数列:

[1, 2, 89, 178, 919, 1838, 3907, 7814, 81791, 163582, 347723, 695446, 3590533, 7181066, 319557437, 639114874]

約数ペア:

[(1, 639114874), (2, 319557437), (89, 7181066), (178, 3590533), (919, 695446), (1838, 347723), (3907, 163582), (7814, 81791)]