77458640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{138319}}^1$

素因数の和:138339

約数の個数: 40

約数和(自身を含む): 205820160

約数和(自身を除く): 128361520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 138319, 276638, 553276, 691595, 968233, 1106552, 1383190, 1936466, 2213104, 2766380, 3872932, 4841165, 5532760, 7745864, 9682330, 11065520, 15491728, 19364660, 38729320, 77458640]

約数ペア:

[(1, 77458640), (2, 38729320), (4, 19364660), (5, 15491728), (7, 11065520), (8, 9682330), (10, 7745864), (14, 5532760), (16, 4841165), (20, 3872932), (28, 2766380), (35, 2213104), (40, 1936466), (56, 1383190), (70, 1106552), (80, 968233), (112, 691595), (140, 553276), (280, 276638), (560, 138319)]