20908425

素因数分解:

$3^1\times 5^2\times {\mathrm{149}}^1\times {\mathrm{1871}}^1$

素因数の和:2033

約数の個数: 24

約数和(自身を含む): 34819200

約数和(自身を除く): 13910775

約数列:

[1, 3, 5, 15, 25, 75, 149, 447, 745, 1871, 2235, 3725, 5613, 9355, 11175, 28065, 46775, 140325, 278779, 836337, 1393895, 4181685, 6969475, 20908425]

約数ペア:

[(1, 20908425), (3, 6969475), (5, 4181685), (15, 1393895), (25, 836337), (75, 278779), (149, 140325), (447, 46775), (745, 28065), (1871, 11175), (2235, 9355), (3725, 5613)]