19141220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2909}}^1$

素因数の和:2972

約数の個数: 48

約数和(自身を含む): 46932480

約数和(自身を除く): 27791260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 2909, 3290, 5818, 6580, 11636, 14545, 20363, 29090, 40726, 58180, 81452, 101815, 136723, 203630, 273446, 407260, 546892, 683615, 957061, 1367230, 1914122, 2734460, 3828244, 4785305, 9570610, 19141220]

約数ペア:

[(1, 19141220), (2, 9570610), (4, 4785305), (5, 3828244), (7, 2734460), (10, 1914122), (14, 1367230), (20, 957061), (28, 683615), (35, 546892), (47, 407260), (70, 273446), (94, 203630), (140, 136723), (188, 101815), (235, 81452), (329, 58180), (470, 40726), (658, 29090), (940, 20363), (1316, 14545), (1645, 11636), (2909, 6580), (3290, 5818)]