20715853668

素因数分解:

$2^2\times 3^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1\times {\mathrm{313}}^1\times {\mathrm{491}}^1$

素因数の和:1097

約数の個数: 96

約数和(自身を含む): 49831649280

約数和(自身を除く): 29115795612

約数列:

[1, 2, 3, 4, 6, 12, 47, 94, 141, 188, 239, 282, 313, 478, 491, 564, 626, 717, 939, 956, 982, 1252, 1434, 1473, 1878, 1964, 2868, 2946, 3756, 5892, 11233, 14711, 22466, 23077, 29422, 33699, 44133, 44932, 46154, 58844, 67398, 69231, 74807, 88266, 92308, 117349, 134796, 138462, 149614, 153683, 176532, 224421, 234698, 276924, 299228, 307366, 352047, 448842, 461049, 469396, 614732, 704094, 897684, 922098, 1408188, 1844196, 3515929, 5515403, 7031858, 7223101, 10547787, 11030806, 14063716, 14446202, 16546209, 21095574, 21669303, 22061612, 28892404, 33092418, 36730237, 42191148, 43338606, 66184836, 73460474, 86677212, 110190711, 146920948, 220381422, 440762844, 1726321139, 3452642278, 5178963417, 6905284556, 10357926834, 20715853668]

約数ペア:

[(1, 20715853668), (2, 10357926834), (3, 6905284556), (4, 5178963417), (6, 3452642278), (12, 1726321139), (47, 440762844), (94, 220381422), (141, 146920948), (188, 110190711), (239, 86677212), (282, 73460474), (313, 66184836), (478, 43338606), (491, 42191148), (564, 36730237), (626, 33092418), (717, 28892404), (939, 22061612), (956, 21669303), (982, 21095574), (1252, 16546209), (1434, 14446202), (1473, 14063716), (1878, 11030806), (1964, 10547787), (2868, 7223101), (2946, 7031858), (3756, 5515403), (5892, 3515929), (11233, 1844196), (14711, 1408188), (22466, 922098), (23077, 897684), (29422, 704094), (33699, 614732), (44133, 469396), (44932, 461049), (46154, 448842), (58844, 352047), (67398, 307366), (69231, 299228), (74807, 276924), (88266, 234698), (92308, 224421), (117349, 176532), (134796, 153683), (138462, 149614)]