201326875

素因数分解:

$5^4\times {\mathrm{83}}^1\times {\mathrm{3881}}^1$

素因数の和:3984

約数の個数: 20

約数和(自身を含む): 254674728

約数和(自身を除く): 53347853

約数列:

[1, 5, 25, 83, 125, 415, 625, 2075, 3881, 10375, 19405, 51875, 97025, 322123, 485125, 1610615, 2425625, 8053075, 40265375, 201326875]

約数ペア:

[(1, 201326875), (5, 40265375), (25, 8053075), (83, 2425625), (125, 1610615), (415, 485125), (625, 322123), (2075, 97025), (3881, 51875), (10375, 19405)]