31915130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{245501}}^1$

素因数の和:245521

約数の個数: 16

約数和(自身を含む): 61866504

約数和(自身を除く): 29951374

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 245501, 491002, 1227505, 2455010, 3191513, 6383026, 15957565, 31915130]

約数ペア:

[(1, 31915130), (2, 15957565), (5, 6383026), (10, 3191513), (13, 2455010), (26, 1227505), (65, 491002), (130, 245501)]