20557740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{48947}}^1$

素因数の和:48966

約数の個数: 48

約数和(自身を含む): 65786112

約数和(自身を除く): 45228372

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, 48947, 97894, 146841, 195788, 244735, 293682, 342629, 489470, 587364, 685258, 734205, 978940, 1027887, 1370516, 1468410, 1713145, 2055774, 2936820, 3426290, 4111548, 5139435, 6852580, 10278870, 20557740]

約数ペア:

[(1, 20557740), (2, 10278870), (3, 6852580), (4, 5139435), (5, 4111548), (6, 3426290), (7, 2936820), (10, 2055774), (12, 1713145), (14, 1468410), (15, 1370516), (20, 1027887), (21, 978940), (28, 734205), (30, 685258), (35, 587364), (42, 489470), (60, 342629), (70, 293682), (84, 244735), (105, 195788), (140, 146841), (210, 97894), (420, 48947)]