28222780

素因数分解:

$2^2\times 5^1\times {\mathrm{911}}^1\times {\mathrm{1549}}^1$

素因数の和:2469

約数の個数: 24

約数和(自身を含む): 59371200

約数和(自身を除く): 31148420

約数列:

[1, 2, 4, 5, 10, 20, 911, 1549, 1822, 3098, 3644, 4555, 6196, 7745, 9110, 15490, 18220, 30980, 1411139, 2822278, 5644556, 7055695, 14111390, 28222780]

約数ペア:

[(1, 28222780), (2, 14111390), (4, 7055695), (5, 5644556), (10, 2822278), (20, 1411139), (911, 30980), (1549, 18220), (1822, 15490), (3098, 9110), (3644, 7745), (4555, 6196)]