19753220

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{5171}}^1$

素因数の和:5371

約数の個数: 24

約数和(自身を含む): 41707008

約数和(自身を除く): 21953788

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 5171, 10342, 20684, 25855, 51710, 103420, 987661, 1975322, 3950644, 4938305, 9876610, 19753220]

約数ペア:

[(1, 19753220), (2, 9876610), (4, 4938305), (5, 3950644), (10, 1975322), (20, 987661), (191, 103420), (382, 51710), (764, 25855), (955, 20684), (1910, 10342), (3820, 5171)]