20145340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{307}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 45172512

約数和(自身を除く): 25027172

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 193, 307, 340, 386, 614, 772, 965, 1228, 1535, 1930, 3070, 3281, 3860, 5219, 6140, 6562, 10438, 13124, 16405, 20876, 26095, 32810, 52190, 59251, 65620, 104380, 118502, 237004, 296255, 592510, 1007267, 1185020, 2014534, 4029068, 5036335, 10072670, 20145340]

約数ペア:

[(1, 20145340), (2, 10072670), (4, 5036335), (5, 4029068), (10, 2014534), (17, 1185020), (20, 1007267), (34, 592510), (68, 296255), (85, 237004), (170, 118502), (193, 104380), (307, 65620), (340, 59251), (386, 52190), (614, 32810), (772, 26095), (965, 20876), (1228, 16405), (1535, 13124), (1930, 10438), (3070, 6562), (3281, 6140), (3860, 5219)]