87491380

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{38713}}^1$

素因数の和:38835

約数の個数: 24

約数和(自身を含む): 185362632

約数和(自身を除く): 97871252

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 38713, 77426, 154852, 193565, 387130, 774260, 4374569, 8749138, 17498276, 21872845, 43745690, 87491380]

約数ペア:

[(1, 87491380), (2, 43745690), (4, 21872845), (5, 17498276), (10, 8749138), (20, 4374569), (113, 774260), (226, 387130), (452, 193565), (565, 154852), (1130, 77426), (2260, 38713)]