2139125

素因数分解:

$5^3\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:281

約数の個数: 16

約数和(自身を含む): 2711280

約数和(自身を除く): 572155

約数列:

[1, 5, 25, 109, 125, 157, 545, 785, 2725, 3925, 13625, 17113, 19625, 85565, 427825, 2139125]

約数ペア:

[(1, 2139125), (5, 427825), (25, 85565), (109, 19625), (125, 17113), (157, 13625), (545, 3925), (785, 2725)]