28525720

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{6311}}^1$

素因数の和:6435

約数の個数: 32

約数和(自身を含む): 64761120

約数和(自身を除く): 36235400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 6311, 12622, 25244, 31555, 50488, 63110, 126220, 252440, 713143, 1426286, 2852572, 3565715, 5705144, 7131430, 14262860, 28525720]

約数ペア:

[(1, 28525720), (2, 14262860), (4, 7131430), (5, 5705144), (8, 3565715), (10, 2852572), (20, 1426286), (40, 713143), (113, 252440), (226, 126220), (452, 63110), (565, 50488), (904, 31555), (1130, 25244), (2260, 12622), (4520, 6311)]