20130261640

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1531}}^1\times {\mathrm{1721}}^1$

素因数の和:3454

約数の個数: 64

約数和(自身を含む): 45586437120

約数和(自身を除く): 25456175480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1531, 1721, 1910, 3062, 3442, 3820, 6124, 6884, 7640, 7655, 8605, 12248, 13768, 15310, 17210, 30620, 34420, 61240, 68840, 292421, 328711, 584842, 657422, 1169684, 1314844, 1462105, 1643555, 2339368, 2629688, 2634851, 2924210, 3287110, 5269702, 5848420, 6574220, 10539404, 11696840, 13148440, 13174255, 21078808, 26348510, 52697020, 105394040, 503256541, 1006513082, 2013026164, 2516282705, 4026052328, 5032565410, 10065130820, 20130261640]

約数ペア:

[(1, 20130261640), (2, 10065130820), (4, 5032565410), (5, 4026052328), (8, 2516282705), (10, 2013026164), (20, 1006513082), (40, 503256541), (191, 105394040), (382, 52697020), (764, 26348510), (955, 21078808), (1528, 13174255), (1531, 13148440), (1721, 11696840), (1910, 10539404), (3062, 6574220), (3442, 5848420), (3820, 5269702), (6124, 3287110), (6884, 2924210), (7640, 2634851), (7655, 2629688), (8605, 2339368), (12248, 1643555), (13768, 1462105), (15310, 1314844), (17210, 1169684), (30620, 657422), (34420, 584842), (61240, 328711), (68840, 292421)]