20727850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{223}}^1$

素因数の和:272

約数の個数: 72

約数和(自身を含む): 45747072

約数和(自身を除く): 25019222

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 130, 143, 169, 223, 275, 286, 325, 338, 446, 550, 650, 715, 845, 1115, 1430, 1690, 1859, 2230, 2453, 2899, 3575, 3718, 4225, 4906, 5575, 5798, 7150, 8450, 9295, 11150, 12265, 14495, 18590, 24530, 28990, 31889, 37687, 46475, 61325, 63778, 72475, 75374, 92950, 122650, 144950, 159445, 188435, 318890, 376870, 414557, 797225, 829114, 942175, 1594450, 1884350, 2072785, 4145570, 10363925, 20727850]

約数ペア:

[(1, 20727850), (2, 10363925), (5, 4145570), (10, 2072785), (11, 1884350), (13, 1594450), (22, 942175), (25, 829114), (26, 797225), (50, 414557), (55, 376870), (65, 318890), (110, 188435), (130, 159445), (143, 144950), (169, 122650), (223, 92950), (275, 75374), (286, 72475), (325, 63778), (338, 61325), (446, 46475), (550, 37687), (650, 31889), (715, 28990), (845, 24530), (1115, 18590), (1430, 14495), (1690, 12265), (1859, 11150), (2230, 9295), (2453, 8450), (2899, 7150), (3575, 5798), (3718, 5575), (4225, 4906)]