21851165520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{705787}}^1$

素因数の和:705849

約数の個数: 120

約数和(自身を含む): 75090196896

約数和(自身を除く): 53239031376

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, 720, 774, 860, 1032, 1290, 1548, 1720, 1935, 2064, 2580, 3096, 3440, 3870, 5160, 6192, 7740, 10320, 15480, 30960, 705787, 1411574, 2117361, 2823148, 3528935, 4234722, 5646296, 6352083, 7057870, 8469444, 10586805, 11292592, 12704166, 14115740, 16938888, 21173610, 25408332, 28231480, 30348841, 31760415, 33877776, 42347220, 50816664, 56462960, 60697682, 63520830, 84694440, 91046523, 101633328, 121395364, 127041660, 151744205, 169388880, 182093046, 242790728, 254083320, 273139569, 303488410, 364186092, 455232615, 485581456, 508166640, 546279138, 606976820, 728372184, 910465230, 1092558276, 1213953640, 1365697845, 1456744368, 1820930460, 2185116552, 2427907280, 2731395690, 3641860920, 4370233104, 5462791380, 7283721840, 10925582760, 21851165520]

約数ペア:

[(1, 21851165520), (2, 10925582760), (3, 7283721840), (4, 5462791380), (5, 4370233104), (6, 3641860920), (8, 2731395690), (9, 2427907280), (10, 2185116552), (12, 1820930460), (15, 1456744368), (16, 1365697845), (18, 1213953640), (20, 1092558276), (24, 910465230), (30, 728372184), (36, 606976820), (40, 546279138), (43, 508166640), (45, 485581456), (48, 455232615), (60, 364186092), (72, 303488410), (80, 273139569), (86, 254083320), (90, 242790728), (120, 182093046), (129, 169388880), (144, 151744205), (172, 127041660), (180, 121395364), (215, 101633328), (240, 91046523), (258, 84694440), (344, 63520830), (360, 60697682), (387, 56462960), (430, 50816664), (516, 42347220), (645, 33877776), (688, 31760415), (720, 30348841), (774, 28231480), (860, 25408332), (1032, 21173610), (1290, 16938888), (1548, 14115740), (1720, 12704166), (1935, 11292592), (2064, 10586805), (2580, 8469444), (3096, 7057870), (3440, 6352083), (3870, 5646296), (5160, 4234722), (6192, 3528935), (7740, 2823148), (10320, 2117361), (15480, 1411574), (30960, 705787)]