19697580

素因数分解:

$2^2\times 3^6\times 5^1\times 7^1\times {\mathrm{193}}^1$

素因数の和:227

約数の個数: 168

約数和(自身を含む): 71246112

約数和(自身を除く): 51548532

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 193, 210, 243, 252, 270, 315, 324, 378, 386, 405, 420, 486, 540, 567, 579, 630, 729, 756, 772, 810, 945, 965, 972, 1134, 1158, 1215, 1260, 1351, 1458, 1620, 1701, 1737, 1890, 1930, 2268, 2316, 2430, 2702, 2835, 2895, 2916, 3402, 3474, 3645, 3780, 3860, 4053, 4860, 5103, 5211, 5404, 5670, 5790, 6755, 6804, 6948, 7290, 8106, 8505, 8685, 10206, 10422, 11340, 11580, 12159, 13510, 14580, 15633, 16212, 17010, 17370, 20265, 20412, 20844, 24318, 25515, 26055, 27020, 31266, 34020, 34740, 36477, 40530, 46899, 48636, 51030, 52110, 60795, 62532, 72954, 78165, 81060, 93798, 102060, 104220, 109431, 121590, 140697, 145908, 156330, 182385, 187596, 218862, 234495, 243180, 281394, 312660, 328293, 364770, 437724, 468990, 547155, 562788, 656586, 703485, 729540, 937980, 984879, 1094310, 1313172, 1406970, 1641465, 1969758, 2188620, 2813940, 3282930, 3939516, 4924395, 6565860, 9848790, 19697580]

約数ペア:

[(1, 19697580), (2, 9848790), (3, 6565860), (4, 4924395), (5, 3939516), (6, 3282930), (7, 2813940), (9, 2188620), (10, 1969758), (12, 1641465), (14, 1406970), (15, 1313172), (18, 1094310), (20, 984879), (21, 937980), (27, 729540), (28, 703485), (30, 656586), (35, 562788), (36, 547155), (42, 468990), (45, 437724), (54, 364770), (60, 328293), (63, 312660), (70, 281394), (81, 243180), (84, 234495), (90, 218862), (105, 187596), (108, 182385), (126, 156330), (135, 145908), (140, 140697), (162, 121590), (180, 109431), (189, 104220), (193, 102060), (210, 93798), (243, 81060), (252, 78165), (270, 72954), (315, 62532), (324, 60795), (378, 52110), (386, 51030), (405, 48636), (420, 46899), (486, 40530), (540, 36477), (567, 34740), (579, 34020), (630, 31266), (729, 27020), (756, 26055), (772, 25515), (810, 24318), (945, 20844), (965, 20412), (972, 20265), (1134, 17370), (1158, 17010), (1215, 16212), (1260, 15633), (1351, 14580), (1458, 13510), (1620, 12159), (1701, 11580), (1737, 11340), (1890, 10422), (1930, 10206), (2268, 8685), (2316, 8505), (2430, 8106), (2702, 7290), (2835, 6948), (2895, 6804), (2916, 6755), (3402, 5790), (3474, 5670), (3645, 5404), (3780, 5211), (3860, 5103), (4053, 4860)]