31129990

素因数分解:

$2^1\times 5^1\times {\mathrm{569}}^1\times {\mathrm{5471}}^1$

素因数の和:6047

約数の個数: 16

約数和(自身を含む): 56142720

約数和(自身を除く): 25012730

約数列:

[1, 2, 5, 10, 569, 1138, 2845, 5471, 5690, 10942, 27355, 54710, 3112999, 6225998, 15564995, 31129990]

約数ペア:

[(1, 31129990), (2, 15564995), (5, 6225998), (10, 3112999), (569, 54710), (1138, 27355), (2845, 10942), (5471, 5690)]