21950640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{709}}^1$

素因数の和:771

約数の個数: 120

約数和(自身を含む): 75538320

約数和(自身を除く): 53587680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 120, 129, 144, 172, 180, 215, 240, 258, 344, 360, 387, 430, 516, 645, 688, 709, 720, 774, 860, 1032, 1290, 1418, 1548, 1720, 1935, 2064, 2127, 2580, 2836, 3096, 3440, 3545, 3870, 4254, 5160, 5672, 6192, 6381, 7090, 7740, 8508, 10320, 10635, 11344, 12762, 14180, 15480, 17016, 21270, 25524, 28360, 30487, 30960, 31905, 34032, 42540, 51048, 56720, 60974, 63810, 85080, 91461, 102096, 121948, 127620, 152435, 170160, 182922, 243896, 255240, 274383, 304870, 365844, 457305, 487792, 510480, 548766, 609740, 731688, 914610, 1097532, 1219480, 1371915, 1463376, 1829220, 2195064, 2438960, 2743830, 3658440, 4390128, 5487660, 7316880, 10975320, 21950640]

約数ペア:

[(1, 21950640), (2, 10975320), (3, 7316880), (4, 5487660), (5, 4390128), (6, 3658440), (8, 2743830), (9, 2438960), (10, 2195064), (12, 1829220), (15, 1463376), (16, 1371915), (18, 1219480), (20, 1097532), (24, 914610), (30, 731688), (36, 609740), (40, 548766), (43, 510480), (45, 487792), (48, 457305), (60, 365844), (72, 304870), (80, 274383), (86, 255240), (90, 243896), (120, 182922), (129, 170160), (144, 152435), (172, 127620), (180, 121948), (215, 102096), (240, 91461), (258, 85080), (344, 63810), (360, 60974), (387, 56720), (430, 51048), (516, 42540), (645, 34032), (688, 31905), (709, 30960), (720, 30487), (774, 28360), (860, 25524), (1032, 21270), (1290, 17016), (1418, 15480), (1548, 14180), (1720, 12762), (1935, 11344), (2064, 10635), (2127, 10320), (2580, 8508), (2836, 7740), (3096, 7090), (3440, 6381), (3545, 6192), (3870, 5672), (4254, 5160)]