31191106280

素因数分解:

$2^3\times 5^1\times {\mathrm{41221}}^1\times {\mathrm{18917}}^1$

素因数の和:60149

約数の個数: 32

約数和(自身を含む): 70185401640

約数和(自身を除く): 38994295360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 18917, 37834, 41221, 75668, 82442, 94585, 151336, 164884, 189170, 206105, 329768, 378340, 412210, 756680, 824420, 1648840, 779777657, 1559555314, 3119110628, 3898888285, 6238221256, 7797776570, 15595553140, 31191106280]

約数ペア:

[(1, 31191106280), (2, 15595553140), (4, 7797776570), (5, 6238221256), (8, 3898888285), (10, 3119110628), (20, 1559555314), (40, 779777657), (18917, 1648840), (37834, 824420), (41221, 756680), (75668, 412210), (82442, 378340), (94585, 329768), (151336, 206105), (164884, 189170)]