77139640

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{8069}}^1$

素因数の和:8319

約数の個数: 32

約数和(自身を含む): 174312000

約数和(自身を除く): 97172360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 8069, 9560, 16138, 32276, 40345, 64552, 80690, 161380, 322760, 1928491, 3856982, 7713964, 9642455, 15427928, 19284910, 38569820, 77139640]

約数ペア:

[(1, 77139640), (2, 38569820), (4, 19284910), (5, 15427928), (8, 9642455), (10, 7713964), (20, 3856982), (40, 1928491), (239, 322760), (478, 161380), (956, 80690), (1195, 64552), (1912, 40345), (2390, 32276), (4780, 16138), (8069, 9560)]