22503620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 48964608

約数和(自身を除く): 26460988

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 137, 172, 191, 215, 274, 382, 430, 548, 685, 764, 860, 955, 1370, 1910, 2740, 3820, 5891, 8213, 11782, 16426, 23564, 26167, 29455, 32852, 41065, 52334, 58910, 82130, 104668, 117820, 130835, 164260, 261670, 523340, 1125181, 2250362, 4500724, 5625905, 11251810, 22503620]

約数ペア:

[(1, 22503620), (2, 11251810), (4, 5625905), (5, 4500724), (10, 2250362), (20, 1125181), (43, 523340), (86, 261670), (137, 164260), (172, 130835), (191, 117820), (215, 104668), (274, 82130), (382, 58910), (430, 52334), (548, 41065), (685, 32852), (764, 29455), (860, 26167), (955, 23564), (1370, 16426), (1910, 11782), (2740, 8213), (3820, 5891)]