90141680

素因数分解:

$2^4\times 5^1\times {\mathrm{1126771}}^1$

素因数の和:1126784

約数の個数: 20

約数和(自身を含む): 209579592

約数和(自身を除く): 119437912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1126771, 2253542, 4507084, 5633855, 9014168, 11267710, 18028336, 22535420, 45070840, 90141680]

約数ペア:

[(1, 90141680), (2, 45070840), (4, 22535420), (5, 18028336), (8, 11267710), (10, 9014168), (16, 5633855), (20, 4507084), (40, 2253542), (80, 1126771)]