99436180

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{12781}}^1$

素因数の和:13179

約数の個数: 24

約数和(自身を含む): 209369160

約数和(自身を除く): 109932980

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 12781, 25562, 51124, 63905, 127810, 255620, 4971809, 9943618, 19887236, 24859045, 49718090, 99436180]

約数ペア:

[(1, 99436180), (2, 49718090), (4, 24859045), (5, 19887236), (10, 9943618), (20, 4971809), (389, 255620), (778, 127810), (1556, 63905), (1945, 51124), (3890, 25562), (7780, 12781)]