68913640

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{4799}}^1$

素因数の和:5169

約数の個数: 32

約数和(自身を含む): 155520000

約数和(自身を除く): 86606360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 718, 1436, 1795, 2872, 3590, 4799, 7180, 9598, 14360, 19196, 23995, 38392, 47990, 95980, 191960, 1722841, 3445682, 6891364, 8614205, 13782728, 17228410, 34456820, 68913640]

約数ペア:

[(1, 68913640), (2, 34456820), (4, 17228410), (5, 13782728), (8, 8614205), (10, 6891364), (20, 3445682), (40, 1722841), (359, 191960), (718, 95980), (1436, 47990), (1795, 38392), (2872, 23995), (3590, 19196), (4799, 14360), (7180, 9598)]