20958960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{467}}^1$

素因数の和:511

約数の個数: 160

約数和(自身を含む): 75209472

約数和(自身を除く): 54250512

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 20, 22, 24, 30, 33, 34, 40, 44, 48, 51, 55, 60, 66, 68, 80, 85, 88, 102, 110, 120, 132, 136, 165, 170, 176, 187, 204, 220, 240, 255, 264, 272, 330, 340, 374, 408, 440, 467, 510, 528, 561, 660, 680, 748, 816, 880, 934, 935, 1020, 1122, 1320, 1360, 1401, 1496, 1868, 1870, 2040, 2244, 2335, 2640, 2802, 2805, 2992, 3736, 3740, 4080, 4488, 4670, 5137, 5604, 5610, 7005, 7472, 7480, 7939, 8976, 9340, 10274, 11208, 11220, 14010, 14960, 15411, 15878, 18680, 20548, 22416, 22440, 23817, 25685, 28020, 30822, 31756, 37360, 39695, 41096, 44880, 47634, 51370, 56040, 61644, 63512, 77055, 79390, 82192, 87329, 95268, 102740, 112080, 119085, 123288, 127024, 154110, 158780, 174658, 190536, 205480, 238170, 246576, 261987, 308220, 317560, 349316, 381072, 410960, 436645, 476340, 523974, 616440, 635120, 698632, 873290, 952680, 1047948, 1232880, 1309935, 1397264, 1746580, 1905360, 2095896, 2619870, 3493160, 4191792, 5239740, 6986320, 10479480, 20958960]

約数ペア:

[(1, 20958960), (2, 10479480), (3, 6986320), (4, 5239740), (5, 4191792), (6, 3493160), (8, 2619870), (10, 2095896), (11, 1905360), (12, 1746580), (15, 1397264), (16, 1309935), (17, 1232880), (20, 1047948), (22, 952680), (24, 873290), (30, 698632), (33, 635120), (34, 616440), (40, 523974), (44, 476340), (48, 436645), (51, 410960), (55, 381072), (60, 349316), (66, 317560), (68, 308220), (80, 261987), (85, 246576), (88, 238170), (102, 205480), (110, 190536), (120, 174658), (132, 158780), (136, 154110), (165, 127024), (170, 123288), (176, 119085), (187, 112080), (204, 102740), (220, 95268), (240, 87329), (255, 82192), (264, 79390), (272, 77055), (330, 63512), (340, 61644), (374, 56040), (408, 51370), (440, 47634), (467, 44880), (510, 41096), (528, 39695), (561, 37360), (660, 31756), (680, 30822), (748, 28020), (816, 25685), (880, 23817), (934, 22440), (935, 22416), (1020, 20548), (1122, 18680), (1320, 15878), (1360, 15411), (1401, 14960), (1496, 14010), (1868, 11220), (1870, 11208), (2040, 10274), (2244, 9340), (2335, 8976), (2640, 7939), (2802, 7480), (2805, 7472), (2992, 7005), (3736, 5610), (3740, 5604), (4080, 5137), (4488, 4670)]