18851990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{317}}^1$

素因数の和:656

約数の個数: 32

約数和(自身を含む): 35946720

約数和(自身を除く): 17094730

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 313, 317, 626, 634, 1565, 1585, 3130, 3170, 5947, 6023, 11894, 12046, 29735, 30115, 59470, 60230, 99221, 198442, 496105, 992210, 1885199, 3770398, 9425995, 18851990]

約数ペア:

[(1, 18851990), (2, 9425995), (5, 3770398), (10, 1885199), (19, 992210), (38, 496105), (95, 198442), (190, 99221), (313, 60230), (317, 59470), (626, 30115), (634, 29735), (1565, 12046), (1585, 11894), (3130, 6023), (3170, 5947)]