90426140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{645901}}^1$

素因数の和:645917

約数の個数: 24

約数和(自身を含む): 217023072

約数和(自身を除く): 126596932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 645901, 1291802, 2583604, 3229505, 4521307, 6459010, 9042614, 12918020, 18085228, 22606535, 45213070, 90426140]

約数ペア:

[(1, 90426140), (2, 45213070), (4, 22606535), (5, 18085228), (7, 12918020), (10, 9042614), (14, 6459010), (20, 4521307), (28, 3229505), (35, 2583604), (70, 1291802), (140, 645901)]