2020100180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{40193}}^1$

素因数の和:40568

約数の個数: 48

約数和(自身を含む): 4861866240

約数和(自身を除く): 2841766060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 359, 718, 1436, 1795, 2513, 3590, 5026, 7180, 10052, 12565, 25130, 40193, 50260, 80386, 160772, 200965, 281351, 401930, 562702, 803860, 1125404, 1406755, 2813510, 5627020, 14429287, 28858574, 57717148, 72146435, 101005009, 144292870, 202010018, 288585740, 404020036, 505025045, 1010050090, 2020100180]

約数ペア:

[(1, 2020100180), (2, 1010050090), (4, 505025045), (5, 404020036), (7, 288585740), (10, 202010018), (14, 144292870), (20, 101005009), (28, 72146435), (35, 57717148), (70, 28858574), (140, 14429287), (359, 5627020), (718, 2813510), (1436, 1406755), (1795, 1125404), (2513, 803860), (3590, 562702), (5026, 401930), (7180, 281351), (10052, 200965), (12565, 160772), (25130, 80386), (40193, 50260)]