31641340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{821}}^1$

素因数の和:918

約数の個数: 48

約数和(自身を含む): 69600384

約数和(自身を除く): 37959044

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 410, 470, 820, 821, 940, 1642, 1927, 3284, 3854, 4105, 7708, 8210, 9635, 16420, 19270, 33661, 38540, 38587, 67322, 77174, 134644, 154348, 168305, 192935, 336610, 385870, 673220, 771740, 1582067, 3164134, 6328268, 7910335, 15820670, 31641340]

約数ペア:

[(1, 31641340), (2, 15820670), (4, 7910335), (5, 6328268), (10, 3164134), (20, 1582067), (41, 771740), (47, 673220), (82, 385870), (94, 336610), (164, 192935), (188, 168305), (205, 154348), (235, 134644), (410, 77174), (470, 67322), (820, 38587), (821, 38540), (940, 33661), (1642, 19270), (1927, 16420), (3284, 9635), (3854, 8210), (4105, 7708)]