19872790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{3889}}^1$

素因数の和:3976

約数の個数: 32

約数和(自身を含む): 41451840

約数和(自身を除く): 21579050

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 73, 146, 365, 511, 730, 1022, 2555, 3889, 5110, 7778, 19445, 27223, 38890, 54446, 136115, 272230, 283897, 567794, 1419485, 1987279, 2838970, 3974558, 9936395, 19872790]

約数ペア:

[(1, 19872790), (2, 9936395), (5, 3974558), (7, 2838970), (10, 1987279), (14, 1419485), (35, 567794), (70, 283897), (73, 272230), (146, 136115), (365, 54446), (511, 38890), (730, 27223), (1022, 19445), (2555, 7778), (3889, 5110)]