20000337790

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^2\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:438

約数の個数: 96

約数和(自身を含む): 38296065600

約数和(自身を除く): 18295727810

約数列:

[1, 2, 5, 10, 37, 61, 73, 74, 122, 146, 185, 199, 305, 365, 370, 398, 610, 730, 995, 1990, 2257, 2701, 3721, 4453, 4514, 5402, 7363, 7442, 8906, 11285, 12139, 13505, 14527, 14726, 18605, 22265, 22570, 24278, 27010, 29054, 36815, 37210, 44530, 60695, 72635, 73630, 121390, 137677, 145270, 164761, 271633, 275354, 329522, 449143, 537499, 543266, 688385, 740479, 823805, 886147, 898286, 1074998, 1358165, 1376770, 1480958, 1647610, 1772294, 2245715, 2687495, 2716330, 3702395, 4430735, 4491430, 5374990, 7404790, 8861470, 10050421, 20100842, 27397723, 32787439, 50252105, 54054967, 54795446, 65574878, 100504210, 108109934, 136988615, 163937195, 270274835, 273977230, 327874390, 540549670, 2000033779, 4000067558, 10000168895, 20000337790]

約数ペア:

[(1, 20000337790), (2, 10000168895), (5, 4000067558), (10, 2000033779), (37, 540549670), (61, 327874390), (73, 273977230), (74, 270274835), (122, 163937195), (146, 136988615), (185, 108109934), (199, 100504210), (305, 65574878), (365, 54795446), (370, 54054967), (398, 50252105), (610, 32787439), (730, 27397723), (995, 20100842), (1990, 10050421), (2257, 8861470), (2701, 7404790), (3721, 5374990), (4453, 4491430), (4514, 4430735), (5402, 3702395), (7363, 2716330), (7442, 2687495), (8906, 2245715), (11285, 1772294), (12139, 1647610), (13505, 1480958), (14527, 1376770), (14726, 1358165), (18605, 1074998), (22265, 898286), (22570, 886147), (24278, 823805), (27010, 740479), (29054, 688385), (36815, 543266), (37210, 537499), (44530, 449143), (60695, 329522), (72635, 275354), (73630, 271633), (121390, 164761), (137677, 145270)]