639942862

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^2\times {\mathrm{5483}}^1$

素因数の和:5632

約数の個数: 24

約数和(自身を含む): 1049604696

約数和(自身を除く): 409661834

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 4489, 5483, 8978, 10966, 58357, 71279, 116714, 142558, 367361, 734722, 4775693, 9551386, 24613187, 49226374, 319971431, 639942862]

約数ペア:

[(1, 639942862), (2, 319971431), (13, 49226374), (26, 24613187), (67, 9551386), (134, 4775693), (871, 734722), (1742, 367361), (4489, 142558), (5483, 116714), (8978, 71279), (10966, 58357)]