204428

素因数分解:

$2^2\times 7^3\times {\mathrm{149}}^1$

素因数の和:174

約数の個数: 24

約数和(自身を含む): 420000

約数和(自身を除く): 215572

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 149, 196, 298, 343, 596, 686, 1043, 1372, 2086, 4172, 7301, 14602, 29204, 51107, 102214, 204428]

約数ペア:

[(1, 204428), (2, 102214), (4, 51107), (7, 29204), (14, 14602), (28, 7301), (49, 4172), (98, 2086), (149, 1372), (196, 1043), (298, 686), (343, 596)]