2020459780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1\times {\mathrm{3877}}^1$

素因数の和:4324

約数の個数: 48

約数和(自身を含む): 4315562496

約数和(自身を除く): 2295102716

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 367, 710, 734, 1420, 1468, 1835, 3670, 3877, 7340, 7754, 15508, 19385, 26057, 38770, 52114, 77540, 104228, 130285, 260570, 275267, 521140, 550534, 1101068, 1376335, 1422859, 2752670, 2845718, 5505340, 5691436, 7114295, 14228590, 28457180, 101022989, 202045978, 404091956, 505114945, 1010229890, 2020459780]

約数ペア:

[(1, 2020459780), (2, 1010229890), (4, 505114945), (5, 404091956), (10, 202045978), (20, 101022989), (71, 28457180), (142, 14228590), (284, 7114295), (355, 5691436), (367, 5505340), (710, 2845718), (734, 2752670), (1420, 1422859), (1468, 1376335), (1835, 1101068), (3670, 550534), (3877, 521140), (7340, 275267), (7754, 260570), (15508, 130285), (19385, 104228), (26057, 77540), (38770, 52114)]