688008040

素因数分解:

$2^3\times 5^1\times {\mathrm{17200201}}^1$

素因数の和:17200212

約数の個数: 16

約数和(自身を含む): 1548018180

約数和(自身を除く): 860010140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 17200201, 34400402, 68800804, 86001005, 137601608, 172002010, 344004020, 688008040]

約数ペア:

[(1, 688008040), (2, 344004020), (4, 172002010), (5, 137601608), (8, 86001005), (10, 68800804), (20, 34400402), (40, 17200201)]