87503390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{21713}}^1$

素因数の和:21764

約数の個数: 32

約数和(自身を含む): 175101696

約数和(自身を除く): 87598306

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 21713, 43426, 108565, 217130, 282269, 564538, 673103, 1346206, 1411345, 2822690, 3365515, 6731030, 8750339, 17500678, 43751695, 87503390]

約数ペア:

[(1, 87503390), (2, 43751695), (5, 17500678), (10, 8750339), (13, 6731030), (26, 3365515), (31, 2822690), (62, 1411345), (65, 1346206), (130, 673103), (155, 564538), (310, 282269), (403, 217130), (806, 108565), (2015, 43426), (4030, 21713)]