20105025

素因数分解:

$3^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{4001}}^1$

素因数の和:4081

約数の個数: 24

約数和(自身を含む): 33744864

約数和(自身を除く): 13639839

約数列:

[1, 3, 5, 15, 25, 67, 75, 201, 335, 1005, 1675, 4001, 5025, 12003, 20005, 60015, 100025, 268067, 300075, 804201, 1340335, 4021005, 6701675, 20105025]

約数ペア:

[(1, 20105025), (3, 6701675), (5, 4021005), (15, 1340335), (25, 804201), (67, 300075), (75, 268067), (201, 100025), (335, 60015), (1005, 20005), (1675, 12003), (4001, 5025)]