20415220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{145823}}^1$

素因数の和:145839

約数の個数: 24

約数和(自身を含む): 48996864

約数和(自身を除く): 28581644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 145823, 291646, 583292, 729115, 1020761, 1458230, 2041522, 2916460, 4083044, 5103805, 10207610, 20415220]

約数ペア:

[(1, 20415220), (2, 10207610), (4, 5103805), (5, 4083044), (7, 2916460), (10, 2041522), (14, 1458230), (20, 1020761), (28, 729115), (35, 583292), (70, 291646), (140, 145823)]