81920060

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{87149}}^1$

素因数の和:87205

約数の個数: 24

約数和(自身を含む): 175694400

約数和(自身を除く): 93774340

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 87149, 174298, 348596, 435745, 871490, 1742980, 4096003, 8192006, 16384012, 20480015, 40960030, 81920060]

約数ペア:

[(1, 81920060), (2, 40960030), (4, 20480015), (5, 16384012), (10, 8192006), (20, 4096003), (47, 1742980), (94, 871490), (188, 435745), (235, 348596), (470, 174298), (940, 87149)]