20168060720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{2969}}^1$

素因数の和:3151

約数の個数: 160

約数和(自身を含む): 51043608000

約数和(自身を除く): 30875547280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 109, 152, 164, 190, 205, 218, 304, 328, 380, 410, 436, 545, 656, 760, 779, 820, 872, 1090, 1520, 1558, 1640, 1744, 2071, 2180, 2969, 3116, 3280, 3895, 4142, 4360, 4469, 5938, 6232, 7790, 8284, 8720, 8938, 10355, 11876, 12464, 14845, 15580, 16568, 17876, 20710, 22345, 23752, 29690, 31160, 33136, 35752, 41420, 44690, 47504, 56411, 59380, 62320, 71504, 82840, 84911, 89380, 112822, 118760, 121729, 165680, 169822, 178760, 225644, 237520, 243458, 282055, 323621, 339644, 357520, 424555, 451288, 486916, 564110, 608645, 647242, 679288, 849110, 902576, 973832, 1128220, 1217290, 1294484, 1358576, 1618105, 1698220, 1947664, 2256440, 2312851, 2434580, 2588968, 3236210, 3396440, 4512880, 4625702, 4869160, 5177936, 6148799, 6472420, 6792880, 9251404, 9738320, 11564255, 12297598, 12944840, 13268461, 18502808, 23128510, 24595196, 25889680, 26536922, 30743995, 37005616, 46257020, 49190392, 53073844, 61487990, 66342305, 92514040, 98380784, 106147688, 122975980, 132684610, 185028080, 212295376, 245951960, 252100759, 265369220, 491903920, 504201518, 530738440, 1008403036, 1061476880, 1260503795, 2016806072, 2521007590, 4033612144, 5042015180, 10084030360, 20168060720]

約数ペア:

[(1, 20168060720), (2, 10084030360), (4, 5042015180), (5, 4033612144), (8, 2521007590), (10, 2016806072), (16, 1260503795), (19, 1061476880), (20, 1008403036), (38, 530738440), (40, 504201518), (41, 491903920), (76, 265369220), (80, 252100759), (82, 245951960), (95, 212295376), (109, 185028080), (152, 132684610), (164, 122975980), (190, 106147688), (205, 98380784), (218, 92514040), (304, 66342305), (328, 61487990), (380, 53073844), (410, 49190392), (436, 46257020), (545, 37005616), (656, 30743995), (760, 26536922), (779, 25889680), (820, 24595196), (872, 23128510), (1090, 18502808), (1520, 13268461), (1558, 12944840), (1640, 12297598), (1744, 11564255), (2071, 9738320), (2180, 9251404), (2969, 6792880), (3116, 6472420), (3280, 6148799), (3895, 5177936), (4142, 4869160), (4360, 4625702), (4469, 4512880), (5938, 3396440), (6232, 3236210), (7790, 2588968), (8284, 2434580), (8720, 2312851), (8938, 2256440), (10355, 1947664), (11876, 1698220), (12464, 1618105), (14845, 1358576), (15580, 1294484), (16568, 1217290), (17876, 1128220), (20710, 973832), (22345, 902576), (23752, 849110), (29690, 679288), (31160, 647242), (33136, 608645), (35752, 564110), (41420, 486916), (44690, 451288), (47504, 424555), (56411, 357520), (59380, 339644), (62320, 323621), (71504, 282055), (82840, 243458), (84911, 237520), (89380, 225644), (112822, 178760), (118760, 169822), (121729, 165680)]