520745905

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^2\times {\mathrm{179}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 653425920

約数和(自身を除く): 132680015

約数列:

[1, 5, 31, 137, 155, 179, 685, 895, 4247, 5549, 18769, 21235, 24523, 27745, 93845, 122615, 581839, 760213, 2909195, 3359651, 3801065, 16798255, 104149181, 520745905]

約数ペア:

[(1, 520745905), (5, 104149181), (31, 16798255), (137, 3801065), (155, 3359651), (179, 2909195), (685, 760213), (895, 581839), (4247, 122615), (5549, 93845), (18769, 27745), (21235, 24523)]