20675140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{33347}}^1$

素因数の和:33387

約数の個数: 24

約数和(自身を含む): 44819712

約数和(自身を除く): 24144572

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 33347, 66694, 133388, 166735, 333470, 666940, 1033757, 2067514, 4135028, 5168785, 10337570, 20675140]

約数ペア:

[(1, 20675140), (2, 10337570), (4, 5168785), (5, 4135028), (10, 2067514), (20, 1033757), (31, 666940), (62, 333470), (124, 166735), (155, 133388), (310, 66694), (620, 33347)]