20688220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{147773}}^1$

素因数の和:147789

約数の個数: 24

約数和(自身を含む): 49652064

約数和(自身を除く): 28963844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 147773, 295546, 591092, 738865, 1034411, 1477730, 2068822, 2955460, 4137644, 5172055, 10344110, 20688220]

約数ペア:

[(1, 20688220), (2, 10344110), (4, 5172055), (5, 4137644), (7, 2955460), (10, 2068822), (14, 1477730), (20, 1034411), (28, 738865), (35, 591092), (70, 295546), (140, 147773)]