2021124625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{3041}}^1$

素因数の和:3478

約数の個数: 32

約数和(自身を含む): 2723928480

約数和(自身を除く): 702803855

約数列:

[1, 5, 13, 25, 65, 125, 325, 409, 1625, 2045, 3041, 5317, 10225, 15205, 26585, 39533, 51125, 76025, 132925, 197665, 380125, 664625, 988325, 1243769, 4941625, 6218845, 16168997, 31094225, 80844985, 155471125, 404224925, 2021124625]

約数ペア:

[(1, 2021124625), (5, 404224925), (13, 155471125), (25, 80844985), (65, 31094225), (125, 16168997), (325, 6218845), (409, 4941625), (1625, 1243769), (2045, 988325), (3041, 664625), (5317, 380125), (10225, 197665), (15205, 132925), (26585, 76025), (39533, 51125)]