19287380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19681}}^1$

素因数の和:19704

約数の個数: 36

約数和(自身を含む): 47118708

約数和(自身を除く): 27831328

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 19681, 39362, 78724, 98405, 137767, 196810, 275534, 393620, 551068, 688835, 964369, 1377670, 1928738, 2755340, 3857476, 4821845, 9643690, 19287380]

約数ペア:

[(1, 19287380), (2, 9643690), (4, 4821845), (5, 3857476), (7, 2755340), (10, 1928738), (14, 1377670), (20, 964369), (28, 688835), (35, 551068), (49, 393620), (70, 275534), (98, 196810), (140, 137767), (196, 98405), (245, 78724), (490, 39362), (980, 19681)]