28176280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64037}}^1$

素因数の和:64059

約数の個数: 32

約数和(自身を含む): 69161040

約数和(自身を除く): 40984760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64037, 128074, 256148, 320185, 512296, 640370, 704407, 1280740, 1408814, 2561480, 2817628, 3522035, 5635256, 7044070, 14088140, 28176280]

約数ペア:

[(1, 28176280), (2, 14088140), (4, 7044070), (5, 5635256), (8, 3522035), (10, 2817628), (11, 2561480), (20, 1408814), (22, 1280740), (40, 704407), (44, 640370), (55, 512296), (88, 320185), (110, 256148), (220, 128074), (440, 64037)]