31838120

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1429}}^1$

素因数の和:1997

約数の個数: 32

約数和(自身を含む): 71814600

約数和(自身を除く): 39976480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 1429, 2228, 2785, 2858, 4456, 5570, 5716, 7145, 11140, 11432, 14290, 22280, 28580, 57160, 795953, 1591906, 3183812, 3979765, 6367624, 7959530, 15919060, 31838120]

約数ペア:

[(1, 31838120), (2, 15919060), (4, 7959530), (5, 6367624), (8, 3979765), (10, 3183812), (20, 1591906), (40, 795953), (557, 57160), (1114, 28580), (1429, 22280), (2228, 14290), (2785, 11432), (2858, 11140), (4456, 7145), (5570, 5716)]