20197460725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3655649}}^1$

素因数の和:3655689

約数の個数: 24

約数和(自身を含む): 28557937800

約数和(自身を除く): 8360477075

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 5525, 3655649, 18278245, 47523437, 62146033, 91391225, 237617185, 310730165, 807898429, 1188085925, 1553650825, 4039492145, 20197460725]

約数ペア:

[(1, 20197460725), (5, 4039492145), (13, 1553650825), (17, 1188085925), (25, 807898429), (65, 310730165), (85, 237617185), (221, 91391225), (325, 62146033), (425, 47523437), (1105, 18278245), (5525, 3655649)]