65481875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{6163}}^1$

素因数の和:6200

約数の個数: 20

約数和(自身を含む): 86653512

約数和(自身を除く): 21171637

約数列:

[1, 5, 17, 25, 85, 125, 425, 625, 2125, 6163, 10625, 30815, 104771, 154075, 523855, 770375, 2619275, 3851875, 13096375, 65481875]

約数ペア:

[(1, 65481875), (5, 13096375), (17, 3851875), (25, 2619275), (85, 770375), (125, 523855), (425, 154075), (625, 104771), (2125, 30815), (6163, 10625)]