20228375

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{3947}}^1$

素因数の和:4003

約数の個数: 16

約数和(自身を含む): 25867296

約数和(自身を除く): 5638921

約数列:

[1, 5, 25, 41, 125, 205, 1025, 3947, 5125, 19735, 98675, 161827, 493375, 809135, 4045675, 20228375]

約数ペア:

[(1, 20228375), (5, 4045675), (25, 809135), (41, 493375), (125, 161827), (205, 98675), (1025, 19735), (3947, 5125)]