208131640

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{13729}}^1$

素因数の和:14119

約数の個数: 32

約数和(自身を含む): 469566000

約数和(自身を除く): 261434360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1516, 1895, 3032, 3790, 7580, 13729, 15160, 27458, 54916, 68645, 109832, 137290, 274580, 549160, 5203291, 10406582, 20813164, 26016455, 41626328, 52032910, 104065820, 208131640]

約数ペア:

[(1, 208131640), (2, 104065820), (4, 52032910), (5, 41626328), (8, 26016455), (10, 20813164), (20, 10406582), (40, 5203291), (379, 549160), (758, 274580), (1516, 137290), (1895, 109832), (3032, 68645), (3790, 54916), (7580, 27458), (13729, 15160)]