87820420

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{14303}}^1$

素因数の和:14619

約数の個数: 24

約数和(自身を含む): 185036544

約数和(自身を除く): 97216124

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 1228, 1535, 3070, 6140, 14303, 28606, 57212, 71515, 143030, 286060, 4391021, 8782042, 17564084, 21955105, 43910210, 87820420]

約数ペア:

[(1, 87820420), (2, 43910210), (4, 21955105), (5, 17564084), (10, 8782042), (20, 4391021), (307, 286060), (614, 143030), (1228, 71515), (1535, 57212), (3070, 28606), (6140, 14303)]