90190520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{322109}}^1$

素因数の和:322127

約数の個数: 32

約数和(自身を含む): 231919200

約数和(自身を除く): 141728680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 322109, 644218, 1288436, 1610545, 2254763, 2576872, 3221090, 4509526, 6442180, 9019052, 11273815, 12884360, 18038104, 22547630, 45095260, 90190520]

約数ペア:

[(1, 90190520), (2, 45095260), (4, 22547630), (5, 18038104), (7, 12884360), (8, 11273815), (10, 9019052), (14, 6442180), (20, 4509526), (28, 3221090), (35, 2576872), (40, 2254763), (56, 1610545), (70, 1288436), (140, 644218), (280, 322109)]