19142980

素因数分解:

$2^2\times 5^1\times {\mathrm{823}}^1\times {\mathrm{1163}}^1$

素因数の和:1995

約数の個数: 24

約数和(自身を含む): 40283712

約数和(自身を除く): 21140732

約数列:

[1, 2, 4, 5, 10, 20, 823, 1163, 1646, 2326, 3292, 4115, 4652, 5815, 8230, 11630, 16460, 23260, 957149, 1914298, 3828596, 4785745, 9571490, 19142980]

約数ペア:

[(1, 19142980), (2, 9571490), (4, 4785745), (5, 3828596), (10, 1914298), (20, 957149), (823, 23260), (1163, 16460), (1646, 11630), (2326, 8230), (3292, 5815), (4115, 4652)]