28495705

素因数分解:

$5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{1087}}^1$

素因数の和:1213

約数の個数: 24

約数和(自身を含む): 40186368

約数和(自身を除く): 11690663

約数列:

[1, 5, 7, 35, 49, 107, 245, 535, 749, 1087, 3745, 5243, 5435, 7609, 26215, 38045, 53263, 116309, 266315, 581545, 814163, 4070815, 5699141, 28495705]

約数ペア:

[(1, 28495705), (5, 5699141), (7, 4070815), (35, 814163), (49, 581545), (107, 266315), (245, 116309), (535, 53263), (749, 38045), (1087, 26215), (3745, 7609), (5243, 5435)]