20163210640

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1\times {\mathrm{8719}}^1$

素因数の和:9080

約数の個数: 80

約数和(自身を含む): 47450891520

約数和(自身を除く): 27287680880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 211, 274, 422, 548, 685, 844, 1055, 1096, 1370, 1688, 2110, 2192, 2740, 3376, 4220, 5480, 8440, 8719, 10960, 16880, 17438, 28907, 34876, 43595, 57814, 69752, 87190, 115628, 139504, 144535, 174380, 231256, 289070, 348760, 462512, 578140, 697520, 1156280, 1194503, 1839709, 2312560, 2389006, 3679418, 4778012, 5972515, 7358836, 9198545, 9556024, 11945030, 14717672, 18397090, 19112048, 23890060, 29435344, 36794180, 47780120, 73588360, 95560240, 147176720, 252040133, 504080266, 1008160532, 1260200665, 2016321064, 2520401330, 4032642128, 5040802660, 10081605320, 20163210640]

約数ペア:

[(1, 20163210640), (2, 10081605320), (4, 5040802660), (5, 4032642128), (8, 2520401330), (10, 2016321064), (16, 1260200665), (20, 1008160532), (40, 504080266), (80, 252040133), (137, 147176720), (211, 95560240), (274, 73588360), (422, 47780120), (548, 36794180), (685, 29435344), (844, 23890060), (1055, 19112048), (1096, 18397090), (1370, 14717672), (1688, 11945030), (2110, 9556024), (2192, 9198545), (2740, 7358836), (3376, 5972515), (4220, 4778012), (5480, 3679418), (8440, 2389006), (8719, 2312560), (10960, 1839709), (16880, 1194503), (17438, 1156280), (28907, 697520), (34876, 578140), (43595, 462512), (57814, 348760), (69752, 289070), (87190, 231256), (115628, 174380), (139504, 144535)]