20929025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{907}}^1$

素因数の和:1001

約数の個数: 24

約数和(自身を含む): 28373184

約数和(自身を除く): 7444159

約数列:

[1, 5, 13, 25, 65, 71, 325, 355, 907, 923, 1775, 4535, 4615, 11791, 22675, 23075, 58955, 64397, 294775, 321985, 837161, 1609925, 4185805, 20929025]

約数ペア:

[(1, 20929025), (5, 4185805), (13, 1609925), (25, 837161), (65, 321985), (71, 294775), (325, 64397), (355, 58955), (907, 23075), (923, 22675), (1775, 11791), (4535, 4615)]