18822425

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{163}}^1$

素因数の和:353

約数の個数: 24

約数和(自身を含む): 24403200

約数和(自身を除く): 5580775

約数列:

[1, 5, 25, 31, 149, 155, 163, 745, 775, 815, 3725, 4075, 4619, 5053, 23095, 24287, 25265, 115475, 121435, 126325, 607175, 752897, 3764485, 18822425]

約数ペア:

[(1, 18822425), (5, 3764485), (25, 752897), (31, 607175), (149, 126325), (155, 121435), (163, 115475), (745, 25265), (775, 24287), (815, 23095), (3725, 5053), (4075, 4619)]