20808950

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:281

約数の個数: 48

約数和(自身を含む): 40711680

約数和(自身を除く): 19902730

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 113, 127, 145, 226, 254, 290, 565, 635, 725, 1130, 1270, 1450, 2825, 3175, 3277, 3683, 5650, 6350, 6554, 7366, 14351, 16385, 18415, 28702, 32770, 36830, 71755, 81925, 92075, 143510, 163850, 184150, 358775, 416179, 717550, 832358, 2080895, 4161790, 10404475, 20808950]

約数ペア:

[(1, 20808950), (2, 10404475), (5, 4161790), (10, 2080895), (25, 832358), (29, 717550), (50, 416179), (58, 358775), (113, 184150), (127, 163850), (145, 143510), (226, 92075), (254, 81925), (290, 71755), (565, 36830), (635, 32770), (725, 28702), (1130, 18415), (1270, 16385), (1450, 14351), (2825, 7366), (3175, 6554), (3277, 6350), (3683, 5650)]