86720980

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{29101}}^1$

素因数の和:29259

約数の個数: 24

約数和(自身を含む): 183342600

約数和(自身を除く): 96621620

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 29101, 58202, 116404, 145505, 291010, 582020, 4336049, 8672098, 17344196, 21680245, 43360490, 86720980]

約数ペア:

[(1, 86720980), (2, 43360490), (4, 21680245), (5, 17344196), (10, 8672098), (20, 4336049), (149, 582020), (298, 291010), (596, 145505), (745, 116404), (1490, 58202), (2980, 29101)]