31199090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{18461}}^1$

素因数の和:18494

約数の個数: 24

約数和(自身を含む): 60813828

約数和(自身を除く): 29614738

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 18461, 36922, 92305, 184610, 239993, 479986, 1199965, 2399930, 3119909, 6239818, 15599545, 31199090]

約数ペア:

[(1, 31199090), (2, 15599545), (5, 6239818), (10, 3119909), (13, 2399930), (26, 1199965), (65, 479986), (130, 239993), (169, 184610), (338, 92305), (845, 36922), (1690, 18461)]