15399725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1931}}^1$

素因数の和:1981

約数の個数: 24

約数和(自身を含む): 21561120

約数和(自身を除く): 6161395

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 725, 1595, 1931, 7975, 9655, 21241, 48275, 55999, 106205, 279995, 531025, 615989, 1399975, 3079945, 15399725]

約数ペア:

[(1, 15399725), (5, 3079945), (11, 1399975), (25, 615989), (29, 531025), (55, 279995), (145, 106205), (275, 55999), (319, 48275), (725, 21241), (1595, 9655), (1931, 7975)]