19564025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3541}}^1$

素因数の和:3581

約数の個数: 24

約数和(自身を含む): 27670104

約数和(自身を除く): 8106079

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 3541, 5525, 17705, 46033, 60197, 88525, 230165, 300985, 782561, 1150825, 1504925, 3912805, 19564025]

約数ペア:

[(1, 19564025), (5, 3912805), (13, 1504925), (17, 1150825), (25, 782561), (65, 300985), (85, 230165), (221, 88525), (325, 60197), (425, 46033), (1105, 17705), (3541, 5525)]