166778680

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{27983}}^1$

素因数の和:28143

約数の個数: 32

約数和(自身を含む): 377784000

約数和(自身を除く): 211005320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5960, 27983, 55966, 111932, 139915, 223864, 279830, 559660, 1119320, 4169467, 8338934, 16677868, 20847335, 33355736, 41694670, 83389340, 166778680]

約数ペア:

[(1, 166778680), (2, 83389340), (4, 41694670), (5, 33355736), (8, 20847335), (10, 16677868), (20, 8338934), (40, 4169467), (149, 1119320), (298, 559660), (596, 279830), (745, 223864), (1192, 139915), (1490, 111932), (2980, 55966), (5960, 27983)]