20750280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{479}}^1$

素因数の和:531

約数の個数: 96

約数和(自身を含む): 65836800

約数和(自身を除く): 45086520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 361, 380, 456, 479, 570, 722, 760, 958, 1083, 1140, 1437, 1444, 1805, 1916, 2166, 2280, 2395, 2874, 2888, 3610, 3832, 4332, 4790, 5415, 5748, 7185, 7220, 8664, 9101, 9580, 10830, 11496, 14370, 14440, 18202, 19160, 21660, 27303, 28740, 36404, 43320, 45505, 54606, 57480, 72808, 91010, 109212, 136515, 172919, 182020, 218424, 273030, 345838, 364040, 518757, 546060, 691676, 864595, 1037514, 1092120, 1383352, 1729190, 2075028, 2593785, 3458380, 4150056, 5187570, 6916760, 10375140, 20750280]

約数ペア:

[(1, 20750280), (2, 10375140), (3, 6916760), (4, 5187570), (5, 4150056), (6, 3458380), (8, 2593785), (10, 2075028), (12, 1729190), (15, 1383352), (19, 1092120), (20, 1037514), (24, 864595), (30, 691676), (38, 546060), (40, 518757), (57, 364040), (60, 345838), (76, 273030), (95, 218424), (114, 182020), (120, 172919), (152, 136515), (190, 109212), (228, 91010), (285, 72808), (361, 57480), (380, 54606), (456, 45505), (479, 43320), (570, 36404), (722, 28740), (760, 27303), (958, 21660), (1083, 19160), (1140, 18202), (1437, 14440), (1444, 14370), (1805, 11496), (1916, 10830), (2166, 9580), (2280, 9101), (2395, 8664), (2874, 7220), (2888, 7185), (3610, 5748), (3832, 5415), (4332, 4790)]