81241240

素因数分解:

$2^3\times 5^1\times {\mathrm{757}}^1\times {\mathrm{2683}}^1$

素因数の和:3451

約数の個数: 32

約数和(自身を含む): 183102480

約数和(自身を除く): 101861240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 757, 1514, 2683, 3028, 3785, 5366, 6056, 7570, 10732, 13415, 15140, 21464, 26830, 30280, 53660, 107320, 2031031, 4062062, 8124124, 10155155, 16248248, 20310310, 40620620, 81241240]

約数ペア:

[(1, 81241240), (2, 40620620), (4, 20310310), (5, 16248248), (8, 10155155), (10, 8124124), (20, 4062062), (40, 2031031), (757, 107320), (1514, 53660), (2683, 30280), (3028, 26830), (3785, 21464), (5366, 15140), (6056, 13415), (7570, 10732)]