87125720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{198013}}^1$

素因数の和:198035

約数の個数: 32

約数和(自身を含む): 213855120

約数和(自身を除く): 126729400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 198013, 396026, 792052, 990065, 1584104, 1980130, 2178143, 3960260, 4356286, 7920520, 8712572, 10890715, 17425144, 21781430, 43562860, 87125720]

約数ペア:

[(1, 87125720), (2, 43562860), (4, 21781430), (5, 17425144), (8, 10890715), (10, 8712572), (11, 7920520), (20, 4356286), (22, 3960260), (40, 2178143), (44, 1980130), (55, 1584104), (88, 990065), (110, 792052), (220, 396026), (440, 198013)]