20054790

素因数分解:

$2^1\times 3^7\times 5^1\times 7^1\times {\mathrm{131}}^1$

素因数の和:166

約数の個数: 128

約数和(自身を含む): 62346240

約数和(自身を除く): 42291450

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 131, 135, 162, 189, 210, 243, 262, 270, 315, 378, 393, 405, 486, 567, 630, 655, 729, 786, 810, 917, 945, 1134, 1179, 1215, 1310, 1458, 1701, 1834, 1890, 1965, 2187, 2358, 2430, 2751, 2835, 3402, 3537, 3645, 3930, 4374, 4585, 5103, 5502, 5670, 5895, 7074, 7290, 8253, 8505, 9170, 10206, 10611, 10935, 11790, 13755, 15309, 16506, 17010, 17685, 21222, 21870, 24759, 25515, 27510, 30618, 31833, 35370, 41265, 49518, 51030, 53055, 63666, 74277, 76545, 82530, 95499, 106110, 123795, 148554, 153090, 159165, 190998, 222831, 247590, 286497, 318330, 371385, 445662, 477495, 572994, 668493, 742770, 954990, 1114155, 1336986, 1432485, 2005479, 2228310, 2864970, 3342465, 4010958, 6684930, 10027395, 20054790]

約数ペア:

[(1, 20054790), (2, 10027395), (3, 6684930), (5, 4010958), (6, 3342465), (7, 2864970), (9, 2228310), (10, 2005479), (14, 1432485), (15, 1336986), (18, 1114155), (21, 954990), (27, 742770), (30, 668493), (35, 572994), (42, 477495), (45, 445662), (54, 371385), (63, 318330), (70, 286497), (81, 247590), (90, 222831), (105, 190998), (126, 159165), (131, 153090), (135, 148554), (162, 123795), (189, 106110), (210, 95499), (243, 82530), (262, 76545), (270, 74277), (315, 63666), (378, 53055), (393, 51030), (405, 49518), (486, 41265), (567, 35370), (630, 31833), (655, 30618), (729, 27510), (786, 25515), (810, 24759), (917, 21870), (945, 21222), (1134, 17685), (1179, 17010), (1215, 16506), (1310, 15309), (1458, 13755), (1701, 11790), (1834, 10935), (1890, 10611), (1965, 10206), (2187, 9170), (2358, 8505), (2430, 8253), (2751, 7290), (2835, 7074), (3402, 5895), (3537, 5670), (3645, 5502), (3930, 5103), (4374, 4585)]