20257125

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{7717}}^1$

素因数の和:7742

約数の個数: 32

約数和(自身を含む): 38528256

約数和(自身を除く): 18271131

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 175, 375, 525, 875, 2625, 7717, 23151, 38585, 54019, 115755, 162057, 192925, 270095, 578775, 810285, 964625, 1350475, 2893875, 4051425, 6752375, 20257125]

約数ペア:

[(1, 20257125), (3, 6752375), (5, 4051425), (7, 2893875), (15, 1350475), (21, 964625), (25, 810285), (35, 578775), (75, 270095), (105, 192925), (125, 162057), (175, 115755), (375, 54019), (525, 38585), (875, 23151), (2625, 7717)]