639569830

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{29789}}^1$

素因数の和:29928

約数の個数: 32

約数和(自身を含む): 1222581600

約数和(自身を除く): 583011770

約数列:

[1, 2, 5, 10, 19, 38, 95, 113, 190, 226, 565, 1130, 2147, 4294, 10735, 21470, 29789, 59578, 148945, 297890, 565991, 1131982, 2829955, 3366157, 5659910, 6732314, 16830785, 33661570, 63956983, 127913966, 319784915, 639569830]

約数ペア:

[(1, 639569830), (2, 319784915), (5, 127913966), (10, 63956983), (19, 33661570), (38, 16830785), (95, 6732314), (113, 5659910), (190, 3366157), (226, 2829955), (565, 1131982), (1130, 565991), (2147, 297890), (4294, 148945), (10735, 59578), (21470, 29789)]