61309775

素因数分解:

$5^2\times {\mathrm{109}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:419

約数の個数: 24

約数和(自身を含む): 77748000

約数和(自身を除く): 16438225

約数列:

[1, 5, 25, 109, 149, 151, 545, 745, 755, 2725, 3725, 3775, 16241, 16459, 22499, 81205, 82295, 112495, 406025, 411475, 562475, 2452391, 12261955, 61309775]

約数ペア:

[(1, 61309775), (5, 12261955), (25, 2452391), (109, 562475), (149, 411475), (151, 406025), (545, 112495), (745, 82295), (755, 81205), (2725, 22499), (3725, 16459), (3775, 16241)]