64857940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{1637}}^1$

素因数の和:1936

約数の個数: 48

約数和(自身を含む): 156304512

約数和(自身を除く): 91446572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 283, 566, 1132, 1415, 1637, 1981, 2830, 3274, 3962, 5660, 6548, 7924, 8185, 9905, 11459, 16370, 19810, 22918, 32740, 39620, 45836, 57295, 114590, 229180, 463271, 926542, 1853084, 2316355, 3242897, 4632710, 6485794, 9265420, 12971588, 16214485, 32428970, 64857940]

約数ペア:

[(1, 64857940), (2, 32428970), (4, 16214485), (5, 12971588), (7, 9265420), (10, 6485794), (14, 4632710), (20, 3242897), (28, 2316355), (35, 1853084), (70, 926542), (140, 463271), (283, 229180), (566, 114590), (1132, 57295), (1415, 45836), (1637, 39620), (1981, 32740), (2830, 22918), (3274, 19810), (3962, 16370), (5660, 11459), (6548, 9905), (7924, 8185)]