2021696080

素因数分解:

$2^4\times 5^1\times {\mathrm{821}}^1\times {\mathrm{30781}}^1$

素因数の和:31615

約数の個数: 40

約数和(自身を含む): 4706321544

約数和(自身を除く): 2684625464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 821, 1642, 3284, 4105, 6568, 8210, 13136, 16420, 30781, 32840, 61562, 65680, 123124, 153905, 246248, 307810, 492496, 615620, 1231240, 2462480, 25271201, 50542402, 101084804, 126356005, 202169608, 252712010, 404339216, 505424020, 1010848040, 2021696080]

約数ペア:

[(1, 2021696080), (2, 1010848040), (4, 505424020), (5, 404339216), (8, 252712010), (10, 202169608), (16, 126356005), (20, 101084804), (40, 50542402), (80, 25271201), (821, 2462480), (1642, 1231240), (3284, 615620), (4105, 492496), (6568, 307810), (8210, 246248), (13136, 153905), (16420, 123124), (30781, 65680), (32840, 61562)]