66399580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{255383}}^1$

素因数の和:255405

約数の個数: 24

約数和(自身を含む): 150165792

約数和(自身を除く): 83766212

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 255383, 510766, 1021532, 1276915, 2553830, 3319979, 5107660, 6639958, 13279916, 16599895, 33199790, 66399580]

約数ペア:

[(1, 66399580), (2, 33199790), (4, 16599895), (5, 13279916), (10, 6639958), (13, 5107660), (20, 3319979), (26, 2553830), (52, 1276915), (65, 1021532), (130, 510766), (260, 255383)]