205763125

素因数分解:

$5^4\times {\mathrm{401}}^1\times {\mathrm{821}}^1$

素因数の和:1242

約数の個数: 20

約数和(自身を含む): 258076764

約数和(自身を除く): 52313639

約数列:

[1, 5, 25, 125, 401, 625, 821, 2005, 4105, 10025, 20525, 50125, 102625, 250625, 329221, 513125, 1646105, 8230525, 41152625, 205763125]

約数ペア:

[(1, 205763125), (5, 41152625), (25, 8230525), (125, 1646105), (401, 513125), (625, 329221), (821, 250625), (2005, 102625), (4105, 50125), (10025, 20525)]