20848825

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 27063000

約数和(自身を除く): 6214175

約数列:

[1, 5, 25, 29, 145, 149, 193, 725, 745, 965, 3725, 4321, 4825, 5597, 21605, 27985, 28757, 108025, 139925, 143785, 718925, 833953, 4169765, 20848825]

約数ペア:

[(1, 20848825), (5, 4169765), (25, 833953), (29, 718925), (145, 143785), (149, 139925), (193, 108025), (725, 28757), (745, 27985), (965, 21605), (3725, 5597), (4321, 4825)]