20910875

素因数分解:

$5^3\times {\mathrm{131}}^1\times {\mathrm{1277}}^1$

素因数の和:1423

約数の個数: 16

約数和(自身を含む): 26316576

約数和(自身を除く): 5405701

約数列:

[1, 5, 25, 125, 131, 655, 1277, 3275, 6385, 16375, 31925, 159625, 167287, 836435, 4182175, 20910875]

約数ペア:

[(1, 20910875), (5, 4182175), (25, 836435), (125, 167287), (131, 159625), (655, 31925), (1277, 16375), (3275, 6385)]