890690125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{548117}}^1$

素因数の和:548145

約数の個数: 16

約数和(自身を含む): 1197089712

約数和(自身を除く): 306399587

約数列:

[1, 5, 13, 25, 65, 125, 325, 1625, 548117, 2740585, 7125521, 13702925, 35627605, 68514625, 178138025, 890690125]

約数ペア:

[(1, 890690125), (5, 178138025), (13, 68514625), (25, 35627605), (65, 13702925), (125, 7125521), (325, 2740585), (1625, 548117)]