65397580

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{12433}}^1$

素因数の和:12705

約数の個数: 24

約数和(自身を含む): 137868192

約数和(自身を除く): 72470612

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 5260, 12433, 24866, 49732, 62165, 124330, 248660, 3269879, 6539758, 13079516, 16349395, 32698790, 65397580]

約数ペア:

[(1, 65397580), (2, 32698790), (4, 16349395), (5, 13079516), (10, 6539758), (20, 3269879), (263, 248660), (526, 124330), (1052, 62165), (1315, 49732), (2630, 24866), (5260, 12433)]