20687564880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{668203}}^1$

素因数の和:668265

約数の個数: 120

約数和(自身を含む): 71091559968

約数和(自身を除く): 50403995088

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, 668203, 1336406, 2004609, 2672812, 3341015, 4009218, 5345624, 6013827, 6682030, 8018436, 10023045, 10691248, 12027654, 13364060, 16036872, 20046090, 24055308, 26728120, 28732729, 30069135, 32073744, 40092180, 48110616, 53456240, 57465458, 60138270, 80184360, 86198187, 96221232, 114930916, 120276540, 143663645, 160368720, 172396374, 229861832, 240553080, 258594561, 287327290, 344792748, 430990935, 459723664, 481106160, 517189122, 574654580, 689585496, 861981870, 1034378244, 1149309160, 1292972805, 1379170992, 1723963740, 2068756488, 2298618320, 2585945610, 3447927480, 4137512976, 5171891220, 6895854960, 10343782440, 20687564880]

約数ペア:

[(1, 20687564880), (2, 10343782440), (3, 6895854960), (4, 5171891220), (5, 4137512976), (6, 3447927480), (8, 2585945610), (9, 2298618320), (10, 2068756488), (12, 1723963740), (15, 1379170992), (16, 1292972805), (18, 1149309160), (20, 1034378244), (24, 861981870), (30, 689585496), (36, 574654580), (40, 517189122), (43, 481106160), (45, 459723664), (48, 430990935), (60, 344792748), (72, 287327290), (80, 258594561), (86, 240553080), (90, 229861832), (120, 172396374), (129, 160368720), (144, 143663645), (172, 120276540), (180, 114930916), (215, 96221232), (240, 86198187), (258, 80184360), (344, 60138270), (360, 57465458), (387, 53456240), (430, 48110616), (516, 40092180), (645, 32073744), (688, 30069135), (720, 28732729), (774, 26728120), (860, 24055308), (1032, 20046090), (1290, 16036872), (1548, 13364060), (1720, 12027654), (1935, 10691248), (2064, 10023045), (2580, 8018436), (3096, 6682030), (3440, 6013827), (3870, 5345624), (5160, 4009218), (6192, 3341015), (7740, 2672812), (10320, 2004609), (15480, 1336406), (30960, 668203)]