208047640

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{50497}}^1$

素因数の和:50611

約数の個数: 32

約数和(自身を含む): 472661280

約数和(自身を除く): 264613640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 50497, 100994, 201988, 252485, 403976, 504970, 1009940, 2019880, 5201191, 10402382, 20804764, 26005955, 41609528, 52011910, 104023820, 208047640]

約数ペア:

[(1, 208047640), (2, 104023820), (4, 52011910), (5, 41609528), (8, 26005955), (10, 20804764), (20, 10402382), (40, 5201191), (103, 2019880), (206, 1009940), (412, 504970), (515, 403976), (824, 252485), (1030, 201988), (2060, 100994), (4120, 50497)]