20039816

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{571}}^1$

素因数の和:725

約数の個数: 32

約数和(自身を含む): 38918880

約数和(自身を除く): 18879064

約数列:

[1, 2, 4, 8, 41, 82, 107, 164, 214, 328, 428, 571, 856, 1142, 2284, 4387, 4568, 8774, 17548, 23411, 35096, 46822, 61097, 93644, 122194, 187288, 244388, 488776, 2504977, 5009954, 10019908, 20039816]

約数ペア:

[(1, 20039816), (2, 10019908), (4, 5009954), (8, 2504977), (41, 488776), (82, 244388), (107, 187288), (164, 122194), (214, 93644), (328, 61097), (428, 46822), (571, 35096), (856, 23411), (1142, 17548), (2284, 8774), (4387, 4568)]