20313125

素因数分解:

$5^4\times 7^1\times {\mathrm{4643}}^1$

素因数の和:4670

約数の個数: 20

約数和(自身を含む): 29015712

約数和(自身を除く): 8702587

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 875, 4375, 4643, 23215, 32501, 116075, 162505, 580375, 812525, 2901875, 4062625, 20313125]

約数ペア:

[(1, 20313125), (5, 4062625), (7, 2901875), (25, 812525), (35, 580375), (125, 162505), (175, 116075), (625, 32501), (875, 23215), (4375, 4643)]