20189962960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1\times {\mathrm{1201}}^1$

素因数の和:1541

約数の個数: 160

約数和(自身を含む): 50995878912

約数和(自身を除く): 30805915952

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 47, 68, 80, 85, 94, 136, 170, 188, 235, 263, 272, 340, 376, 470, 526, 680, 752, 799, 940, 1052, 1201, 1315, 1360, 1598, 1880, 2104, 2402, 2630, 3196, 3760, 3995, 4208, 4471, 4804, 5260, 6005, 6392, 7990, 8942, 9608, 10520, 12010, 12361, 12784, 15980, 17884, 19216, 20417, 21040, 22355, 24020, 24722, 31960, 35768, 40834, 44710, 48040, 49444, 56447, 61805, 63920, 71536, 81668, 89420, 96080, 98888, 102085, 112894, 123610, 163336, 178840, 197776, 204170, 210137, 225788, 247220, 282235, 315863, 326672, 357680, 408340, 420274, 451576, 494440, 564470, 631726, 816680, 840548, 903152, 959599, 988880, 1050685, 1128940, 1263452, 1579315, 1633360, 1681096, 1919198, 2101370, 2257880, 2526904, 3158630, 3362192, 3838396, 4202740, 4515760, 4797995, 5053808, 5369671, 6317260, 7676792, 8405480, 9595990, 10739342, 12634520, 14845561, 15353584, 16810960, 19191980, 21478684, 25269040, 26848355, 29691122, 38383960, 42957368, 53696710, 59382244, 74227805, 76767920, 85914736, 107393420, 118764488, 148455610, 214786840, 237528976, 252374537, 296911220, 429573680, 504749074, 593822440, 1009498148, 1187644880, 1261872685, 2018996296, 2523745370, 4037992592, 5047490740, 10094981480, 20189962960]

約数ペア:

[(1, 20189962960), (2, 10094981480), (4, 5047490740), (5, 4037992592), (8, 2523745370), (10, 2018996296), (16, 1261872685), (17, 1187644880), (20, 1009498148), (34, 593822440), (40, 504749074), (47, 429573680), (68, 296911220), (80, 252374537), (85, 237528976), (94, 214786840), (136, 148455610), (170, 118764488), (188, 107393420), (235, 85914736), (263, 76767920), (272, 74227805), (340, 59382244), (376, 53696710), (470, 42957368), (526, 38383960), (680, 29691122), (752, 26848355), (799, 25269040), (940, 21478684), (1052, 19191980), (1201, 16810960), (1315, 15353584), (1360, 14845561), (1598, 12634520), (1880, 10739342), (2104, 9595990), (2402, 8405480), (2630, 7676792), (3196, 6317260), (3760, 5369671), (3995, 5053808), (4208, 4797995), (4471, 4515760), (4804, 4202740), (5260, 3838396), (6005, 3362192), (6392, 3158630), (7990, 2526904), (8942, 2257880), (9608, 2101370), (10520, 1919198), (12010, 1681096), (12361, 1633360), (12784, 1579315), (15980, 1263452), (17884, 1128940), (19216, 1050685), (20417, 988880), (21040, 959599), (22355, 903152), (24020, 840548), (24722, 816680), (31960, 631726), (35768, 564470), (40834, 494440), (44710, 451576), (48040, 420274), (49444, 408340), (56447, 357680), (61805, 326672), (63920, 315863), (71536, 282235), (81668, 247220), (89420, 225788), (96080, 210137), (98888, 204170), (102085, 197776), (112894, 178840), (123610, 163336)]