28514220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67891}}^1$

素因数の和:67910

約数の個数: 48

約数和(自身を含む): 91246848

約数和(自身を除く): 62732628

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67891, 135782, 203673, 271564, 339455, 407346, 475237, 678910, 814692, 950474, 1018365, 1357820, 1425711, 1900948, 2036730, 2376185, 2851422, 4073460, 4752370, 5702844, 7128555, 9504740, 14257110, 28514220]

約数ペア:

[(1, 28514220), (2, 14257110), (3, 9504740), (4, 7128555), (5, 5702844), (6, 4752370), (7, 4073460), (10, 2851422), (12, 2376185), (14, 2036730), (15, 1900948), (20, 1425711), (21, 1357820), (28, 1018365), (30, 950474), (35, 814692), (42, 678910), (60, 475237), (70, 407346), (84, 339455), (105, 271564), (140, 203673), (210, 135782), (420, 67891)]