20082580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2141}}^1$

素因数の和:2224

約数の個数: 48

約数和(自身を含む): 48940416

約数和(自身を除く): 28857836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2141, 2345, 4282, 4690, 8564, 9380, 10705, 14987, 21410, 29974, 42820, 59948, 74935, 143447, 149870, 286894, 299740, 573788, 717235, 1004129, 1434470, 2008258, 2868940, 4016516, 5020645, 10041290, 20082580]

約数ペア:

[(1, 20082580), (2, 10041290), (4, 5020645), (5, 4016516), (7, 2868940), (10, 2008258), (14, 1434470), (20, 1004129), (28, 717235), (35, 573788), (67, 299740), (70, 286894), (134, 149870), (140, 143447), (268, 74935), (335, 59948), (469, 42820), (670, 29974), (938, 21410), (1340, 14987), (1876, 10705), (2141, 9380), (2345, 8564), (4282, 4690)]