20982660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:461

約数の個数: 96

約数和(自身を含む): 62899200

約数和(自身を除く): 41916540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 31, 58, 60, 62, 87, 93, 116, 124, 145, 155, 174, 186, 290, 310, 348, 372, 389, 435, 465, 580, 620, 778, 870, 899, 930, 1167, 1556, 1740, 1798, 1860, 1945, 2334, 2697, 3596, 3890, 4495, 4668, 5394, 5835, 7780, 8990, 10788, 11281, 11670, 12059, 13485, 17980, 22562, 23340, 24118, 26970, 33843, 36177, 45124, 48236, 53940, 56405, 60295, 67686, 72354, 112810, 120590, 135372, 144708, 169215, 180885, 225620, 241180, 338430, 349711, 361770, 676860, 699422, 723540, 1049133, 1398844, 1748555, 2098266, 3497110, 4196532, 5245665, 6994220, 10491330, 20982660]

約数ペア:

[(1, 20982660), (2, 10491330), (3, 6994220), (4, 5245665), (5, 4196532), (6, 3497110), (10, 2098266), (12, 1748555), (15, 1398844), (20, 1049133), (29, 723540), (30, 699422), (31, 676860), (58, 361770), (60, 349711), (62, 338430), (87, 241180), (93, 225620), (116, 180885), (124, 169215), (145, 144708), (155, 135372), (174, 120590), (186, 112810), (290, 72354), (310, 67686), (348, 60295), (372, 56405), (389, 53940), (435, 48236), (465, 45124), (580, 36177), (620, 33843), (778, 26970), (870, 24118), (899, 23340), (930, 22562), (1167, 17980), (1556, 13485), (1740, 12059), (1798, 11670), (1860, 11281), (1945, 10788), (2334, 8990), (2697, 7780), (3596, 5835), (3890, 5394), (4495, 4668)]