1391875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{131}}^1$

素因数の和:168

約数の個数: 20

約数和(自身を含む): 1855656

約数和(自身を除く): 463781

約数列:

[1, 5, 17, 25, 85, 125, 131, 425, 625, 655, 2125, 2227, 3275, 10625, 11135, 16375, 55675, 81875, 278375, 1391875]

約数ペア:

[(1, 1391875), (5, 278375), (17, 81875), (25, 55675), (85, 16375), (125, 11135), (131, 10625), (425, 3275), (625, 2227), (655, 2125)]