20256460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3529}}^1$

素因数の和:3586

約数の個数: 48

約数和(自身を含む): 49815360

約数和(自身を除く): 29558900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 3529, 5740, 7058, 14116, 17645, 24703, 35290, 49406, 70580, 98812, 123515, 144689, 247030, 289378, 494060, 578756, 723445, 1012823, 1446890, 2025646, 2893780, 4051292, 5064115, 10128230, 20256460]

約数ペア:

[(1, 20256460), (2, 10128230), (4, 5064115), (5, 4051292), (7, 2893780), (10, 2025646), (14, 1446890), (20, 1012823), (28, 723445), (35, 578756), (41, 494060), (70, 289378), (82, 247030), (140, 144689), (164, 123515), (205, 98812), (287, 70580), (410, 49406), (574, 35290), (820, 24703), (1148, 17645), (1435, 14116), (2870, 7058), (3529, 5740)]