281755820

素因数分解:

$2^2\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{13907}}^1$

素因数の和:14929

約数の個数: 24

約数和(自身を含む): 592313904

約数和(自身を除く): 310558084

約数列:

[1, 2, 4, 5, 10, 20, 1013, 2026, 4052, 5065, 10130, 13907, 20260, 27814, 55628, 69535, 139070, 278140, 14087791, 28175582, 56351164, 70438955, 140877910, 281755820]

約数ペア:

[(1, 281755820), (2, 140877910), (4, 70438955), (5, 56351164), (10, 28175582), (20, 14087791), (1013, 278140), (2026, 139070), (4052, 69535), (5065, 55628), (10130, 27814), (13907, 20260)]