20865030

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1549}}^1$

素因数の和:2008

約数の個数: 32

約数和(自身を含む): 50220000

約数和(自身を除く): 29354970

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 449, 898, 1347, 1549, 2245, 2694, 3098, 4490, 4647, 6735, 7745, 9294, 13470, 15490, 23235, 46470, 695501, 1391002, 2086503, 3477505, 4173006, 6955010, 10432515, 20865030]

約数ペア:

[(1, 20865030), (2, 10432515), (3, 6955010), (5, 4173006), (6, 3477505), (10, 2086503), (15, 1391002), (30, 695501), (449, 46470), (898, 23235), (1347, 15490), (1549, 13470), (2245, 9294), (2694, 7745), (3098, 6735), (4490, 4647)]