81521340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1358689}}^1$

素因数の和:1358701

約数の個数: 24

約数和(自身を含む): 228259920

約数和(自身を除く): 146738580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1358689, 2717378, 4076067, 5434756, 6793445, 8152134, 13586890, 16304268, 20380335, 27173780, 40760670, 81521340]

約数ペア:

[(1, 81521340), (2, 40760670), (3, 27173780), (4, 20380335), (5, 16304268), (6, 13586890), (10, 8152134), (12, 6793445), (15, 5434756), (20, 4076067), (30, 2717378), (60, 1358689)]