205756080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1297}}^1$

素因数の和:1974

約数の個数: 80

約数和(自身を含む): 639301344

約数和(自身を除く): 433545264

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 661, 1297, 1322, 1983, 2594, 2644, 3305, 3891, 3966, 5188, 5288, 6485, 6610, 7782, 7932, 9915, 10376, 10576, 12970, 13220, 15564, 15864, 19455, 19830, 20752, 25940, 26440, 31128, 31728, 38910, 39660, 51880, 52880, 62256, 77820, 79320, 103760, 155640, 158640, 311280, 857317, 1714634, 2571951, 3429268, 4286585, 5143902, 6858536, 8573170, 10287804, 12859755, 13717072, 17146340, 20575608, 25719510, 34292680, 41151216, 51439020, 68585360, 102878040, 205756080]

約数ペア:

[(1, 205756080), (2, 102878040), (3, 68585360), (4, 51439020), (5, 41151216), (6, 34292680), (8, 25719510), (10, 20575608), (12, 17146340), (15, 13717072), (16, 12859755), (20, 10287804), (24, 8573170), (30, 6858536), (40, 5143902), (48, 4286585), (60, 3429268), (80, 2571951), (120, 1714634), (240, 857317), (661, 311280), (1297, 158640), (1322, 155640), (1983, 103760), (2594, 79320), (2644, 77820), (3305, 62256), (3891, 52880), (3966, 51880), (5188, 39660), (5288, 38910), (6485, 31728), (6610, 31128), (7782, 26440), (7932, 25940), (9915, 20752), (10376, 19830), (10576, 19455), (12970, 15864), (13220, 15564)]