71808980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1871}}^1$

素因数の和:2000

約数の個数: 48

約数和(自身を含む): 160392960

約数和(自身を除く): 88583980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 380, 404, 505, 1010, 1871, 1919, 2020, 3742, 3838, 7484, 7676, 9355, 9595, 18710, 19190, 35549, 37420, 38380, 71098, 142196, 177745, 188971, 355490, 377942, 710980, 755884, 944855, 1889710, 3590449, 3779420, 7180898, 14361796, 17952245, 35904490, 71808980]

約数ペア:

[(1, 71808980), (2, 35904490), (4, 17952245), (5, 14361796), (10, 7180898), (19, 3779420), (20, 3590449), (38, 1889710), (76, 944855), (95, 755884), (101, 710980), (190, 377942), (202, 355490), (380, 188971), (404, 177745), (505, 142196), (1010, 71098), (1871, 38380), (1919, 37420), (2020, 35549), (3742, 19190), (3838, 18710), (7484, 9595), (7676, 9355)]