20980470

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{99907}}^1$

素因数の和:99924

約数の個数: 32

約数和(自身を含む): 57547008

約数和(自身を除く): 36566538

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 99907, 199814, 299721, 499535, 599442, 699349, 999070, 1398698, 1498605, 2098047, 2997210, 3496745, 4196094, 6993490, 10490235, 20980470]

約数ペア:

[(1, 20980470), (2, 10490235), (3, 6993490), (5, 4196094), (6, 3496745), (7, 2997210), (10, 2098047), (14, 1498605), (15, 1398698), (21, 999070), (30, 699349), (35, 599442), (42, 499535), (70, 299721), (105, 199814), (210, 99907)]