28130125

素因数分解:

$5^3\times {\mathrm{139}}^1\times {\mathrm{1619}}^1$

素因数の和:1773

約数の個数: 16

約数和(自身を含む): 35380800

約数和(自身を除く): 7250675

約数列:

[1, 5, 25, 125, 139, 695, 1619, 3475, 8095, 17375, 40475, 202375, 225041, 1125205, 5626025, 28130125]

約数ペア:

[(1, 28130125), (5, 5626025), (25, 1125205), (125, 225041), (139, 202375), (695, 40475), (1619, 17375), (3475, 8095)]