20753740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2797}}^1$

素因数の和:2866

約数の個数: 48

約数和(自身を含む): 50766912

約数和(自身を除く): 30013172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 2797, 3710, 5594, 7420, 11188, 13985, 19579, 27970, 39158, 55940, 78316, 97895, 148241, 195790, 296482, 391580, 592964, 741205, 1037687, 1482410, 2075374, 2964820, 4150748, 5188435, 10376870, 20753740]

約数ペア:

[(1, 20753740), (2, 10376870), (4, 5188435), (5, 4150748), (7, 2964820), (10, 2075374), (14, 1482410), (20, 1037687), (28, 741205), (35, 592964), (53, 391580), (70, 296482), (106, 195790), (140, 148241), (212, 97895), (265, 78316), (371, 55940), (530, 39158), (742, 27970), (1060, 19579), (1484, 13985), (1855, 11188), (2797, 7420), (3710, 5594)]