311321140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1197389}}^1$

素因数の和:1197411

約数の個数: 24

約数和(自身を含む): 704065320

約数和(自身を除く): 392744180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1197389, 2394778, 4789556, 5986945, 11973890, 15566057, 23947780, 31132114, 62264228, 77830285, 155660570, 311321140]

約数ペア:

[(1, 311321140), (2, 155660570), (4, 77830285), (5, 62264228), (10, 31132114), (13, 23947780), (20, 15566057), (26, 11973890), (52, 5986945), (65, 4789556), (130, 2394778), (260, 1197389)]