155547640

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{23857}}^1$

素因数の和:24031

約数の個数: 32

約数和(自身を含む): 352144080

約数和(自身を除く): 196596440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 23857, 47714, 95428, 119285, 190856, 238570, 477140, 954280, 3888691, 7777382, 15554764, 19443455, 31109528, 38886910, 77773820, 155547640]

約数ペア:

[(1, 155547640), (2, 77773820), (4, 38886910), (5, 31109528), (8, 19443455), (10, 15554764), (20, 7777382), (40, 3888691), (163, 954280), (326, 477140), (652, 238570), (815, 190856), (1304, 119285), (1630, 95428), (3260, 47714), (6520, 23857)]