1721000725

素因数分解:

$5^2\times {\mathrm{191}}^1\times {\mathrm{439}}^1\times {\mathrm{821}}^1$

素因数の和:1461

約数の個数: 24

約数和(自身を含む): 2152719360

約数和(自身を除く): 431718635

約数列:

[1, 5, 25, 191, 439, 821, 955, 2195, 4105, 4775, 10975, 20525, 83849, 156811, 360419, 419245, 784055, 1802095, 2096225, 3920275, 9010475, 68840029, 344200145, 1721000725]

約数ペア:

[(1, 1721000725), (5, 344200145), (25, 68840029), (191, 9010475), (439, 3920275), (821, 2096225), (955, 1802095), (2195, 784055), (4105, 419245), (4775, 360419), (10975, 156811), (20525, 83849)]