1311820

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{613}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 2785104

約数和(自身を除く): 1473284

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 613, 1070, 1226, 2140, 2452, 3065, 6130, 12260, 65591, 131182, 262364, 327955, 655910, 1311820]

約数ペア:

[(1, 1311820), (2, 655910), (4, 327955), (5, 262364), (10, 131182), (20, 65591), (107, 12260), (214, 6130), (428, 3065), (535, 2452), (613, 2140), (1070, 1226)]