139277560

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{8951}}^1$

素因数の和:9351

約数の個数: 32

約数和(自身を含む): 314215200

約数和(自身を除く): 174937640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 7780, 8951, 15560, 17902, 35804, 44755, 71608, 89510, 179020, 358040, 3481939, 6963878, 13927756, 17409695, 27855512, 34819390, 69638780, 139277560]

約数ペア:

[(1, 139277560), (2, 69638780), (4, 34819390), (5, 27855512), (8, 17409695), (10, 13927756), (20, 6963878), (40, 3481939), (389, 358040), (778, 179020), (1556, 89510), (1945, 71608), (3112, 44755), (3890, 35804), (7780, 17902), (8951, 15560)]