20207875

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{3943}}^1$

素因数の和:3999

約数の個数: 16

約数和(自身を含む): 25841088

約数和(自身を除く): 5633213

約数列:

[1, 5, 25, 41, 125, 205, 1025, 3943, 5125, 19715, 98575, 161663, 492875, 808315, 4041575, 20207875]

約数ペア:

[(1, 20207875), (5, 4041575), (25, 808315), (41, 492875), (125, 161663), (205, 98575), (1025, 19715), (3943, 5125)]