21886760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{78167}}^1$

素因数の和:78185

約数の個数: 32

約数和(自身を含む): 56280960

約数和(自身を除く): 34394200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 78167, 156334, 312668, 390835, 547169, 625336, 781670, 1094338, 1563340, 2188676, 2735845, 3126680, 4377352, 5471690, 10943380, 21886760]

約数ペア:

[(1, 21886760), (2, 10943380), (4, 5471690), (5, 4377352), (7, 3126680), (8, 2735845), (10, 2188676), (14, 1563340), (20, 1094338), (28, 781670), (35, 625336), (40, 547169), (56, 390835), (70, 312668), (140, 156334), (280, 78167)]