2557815

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1009}}^1$

素因数の和:1043

約数の個数: 24

約数和(自身を含む): 4435920

約数和(自身を除く): 1878105

約数列:

[1, 3, 5, 13, 15, 39, 65, 169, 195, 507, 845, 1009, 2535, 3027, 5045, 13117, 15135, 39351, 65585, 170521, 196755, 511563, 852605, 2557815]

約数ペア:

[(1, 2557815), (3, 852605), (5, 511563), (13, 196755), (15, 170521), (39, 65585), (65, 39351), (169, 15135), (195, 13117), (507, 5045), (845, 3027), (1009, 2535)]