18409925

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{379}}^1$

素因数の和:485

約数の個数: 24

約数和(自身を含む): 24031200

約数和(自身を除く): 5621275

約数列:

[1, 5, 25, 29, 67, 145, 335, 379, 725, 1675, 1895, 1943, 9475, 9715, 10991, 25393, 48575, 54955, 126965, 274775, 634825, 736397, 3681985, 18409925]

約数ペア:

[(1, 18409925), (5, 3681985), (25, 736397), (29, 634825), (67, 274775), (145, 126965), (335, 54955), (379, 48575), (725, 25393), (1675, 10991), (1895, 9715), (1943, 9475)]