170776820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139981}}^1$

素因数の和:140051

約数の個数: 24

約数和(自身を含む): 364513128

約数和(自身を除く): 193736308

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 139981, 279962, 559924, 699905, 1399810, 2799620, 8538841, 17077682, 34155364, 42694205, 85388410, 170776820]

約数ペア:

[(1, 170776820), (2, 85388410), (4, 42694205), (5, 34155364), (10, 17077682), (20, 8538841), (61, 2799620), (122, 1399810), (244, 699905), (305, 559924), (610, 279962), (1220, 139981)]