20137875

素因数分解:

$3^1\times 5^3\times {\mathrm{83}}^1\times {\mathrm{647}}^1$

素因数の和:748

約数の個数: 32

約数和(自身を含む): 33965568

約数和(自身を除く): 13827693

約数列:

[1, 3, 5, 15, 25, 75, 83, 125, 249, 375, 415, 647, 1245, 1941, 2075, 3235, 6225, 9705, 10375, 16175, 31125, 48525, 53701, 80875, 161103, 242625, 268505, 805515, 1342525, 4027575, 6712625, 20137875]

約数ペア:

[(1, 20137875), (3, 6712625), (5, 4027575), (15, 1342525), (25, 805515), (75, 268505), (83, 242625), (125, 161103), (249, 80875), (375, 53701), (415, 48525), (647, 31125), (1245, 16175), (1941, 10375), (2075, 9705), (3235, 6225)]