20137740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47947}}^1$

素因数の和:47966

約数の個数: 48

約数和(自身を含む): 64442112

約数和(自身を除く): 44304372

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 47947, 95894, 143841, 191788, 239735, 287682, 335629, 479470, 575364, 671258, 719205, 958940, 1006887, 1342516, 1438410, 1678145, 2013774, 2876820, 3356290, 4027548, 5034435, 6712580, 10068870, 20137740]

約数ペア:

[(1, 20137740), (2, 10068870), (3, 6712580), (4, 5034435), (5, 4027548), (6, 3356290), (7, 2876820), (10, 2013774), (12, 1678145), (14, 1438410), (15, 1342516), (20, 1006887), (21, 958940), (28, 719205), (30, 671258), (35, 575364), (42, 479470), (60, 335629), (70, 287682), (84, 239735), (105, 191788), (140, 143841), (210, 95894), (420, 47947)]