18259475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2957}}^1$

素因数の和:2999

約数の個数: 24

約数和(自身を含む): 25675440

約数和(自身を除く): 7415965

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 475, 1235, 2957, 6175, 14785, 38441, 56183, 73925, 192205, 280915, 730379, 961025, 1404575, 3651895, 18259475]

約数ペア:

[(1, 18259475), (5, 3651895), (13, 1404575), (19, 961025), (25, 730379), (65, 280915), (95, 192205), (247, 73925), (325, 56183), (475, 38441), (1235, 14785), (2957, 6175)]