20855528080

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1\times {\mathrm{337}}^1$

素因数の和:657

約数の個数: 160

約数和(自身を含む): 50455342080

約数和(自身を除く): 29599814000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 109, 151, 188, 218, 235, 302, 337, 376, 436, 470, 545, 604, 674, 752, 755, 872, 940, 1090, 1208, 1348, 1510, 1685, 1744, 1880, 2180, 2416, 2696, 3020, 3370, 3760, 4360, 5123, 5392, 6040, 6740, 7097, 8720, 10246, 12080, 13480, 14194, 15839, 16459, 20492, 25615, 26960, 28388, 31678, 32918, 35485, 36733, 40984, 50887, 51230, 56776, 63356, 65836, 70970, 73466, 79195, 81968, 82295, 101774, 102460, 113552, 126712, 131672, 141940, 146932, 158390, 164590, 183665, 203548, 204920, 253424, 254435, 263344, 283880, 293864, 316780, 329180, 367330, 407096, 409840, 508870, 567760, 587728, 633560, 658360, 734660, 773573, 814192, 1017740, 1267120, 1316720, 1469320, 1547146, 1726451, 2035480, 2391689, 2938640, 3094292, 3452902, 3867865, 4070960, 4783378, 5546683, 6188584, 6905804, 7735730, 8632255, 9566756, 11093366, 11958445, 12377168, 13811608, 15471460, 17264510, 19133512, 22186732, 23916890, 27623216, 27733415, 30942920, 34529020, 38267024, 44373464, 47833780, 55466830, 61885840, 69058040, 88746928, 95667560, 110933660, 138116080, 191335120, 221867320, 260694101, 443734640, 521388202, 1042776404, 1303470505, 2085552808, 2606941010, 4171105616, 5213882020, 10427764040, 20855528080]

約数ペア:

[(1, 20855528080), (2, 10427764040), (4, 5213882020), (5, 4171105616), (8, 2606941010), (10, 2085552808), (16, 1303470505), (20, 1042776404), (40, 521388202), (47, 443734640), (80, 260694101), (94, 221867320), (109, 191335120), (151, 138116080), (188, 110933660), (218, 95667560), (235, 88746928), (302, 69058040), (337, 61885840), (376, 55466830), (436, 47833780), (470, 44373464), (545, 38267024), (604, 34529020), (674, 30942920), (752, 27733415), (755, 27623216), (872, 23916890), (940, 22186732), (1090, 19133512), (1208, 17264510), (1348, 15471460), (1510, 13811608), (1685, 12377168), (1744, 11958445), (1880, 11093366), (2180, 9566756), (2416, 8632255), (2696, 7735730), (3020, 6905804), (3370, 6188584), (3760, 5546683), (4360, 4783378), (5123, 4070960), (5392, 3867865), (6040, 3452902), (6740, 3094292), (7097, 2938640), (8720, 2391689), (10246, 2035480), (12080, 1726451), (13480, 1547146), (14194, 1469320), (15839, 1316720), (16459, 1267120), (20492, 1017740), (25615, 814192), (26960, 773573), (28388, 734660), (31678, 658360), (32918, 633560), (35485, 587728), (36733, 567760), (40984, 508870), (50887, 409840), (51230, 407096), (56776, 367330), (63356, 329180), (65836, 316780), (70970, 293864), (73466, 283880), (79195, 263344), (81968, 254435), (82295, 253424), (101774, 204920), (102460, 203548), (113552, 183665), (126712, 164590), (131672, 158390), (141940, 146932)]