204911520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^2$

素因数の和:423

約数の個数: 144

約数和(自身を含む): 707743008

約数和(自身を除く): 502831488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 197, 220, 240, 264, 330, 352, 394, 440, 480, 528, 591, 660, 788, 880, 985, 1056, 1182, 1320, 1576, 1760, 1970, 2167, 2364, 2640, 2955, 3152, 3940, 4334, 4728, 5280, 5910, 6304, 6501, 7880, 8668, 9456, 10835, 11820, 13002, 15760, 17336, 18912, 21670, 23640, 26004, 31520, 32505, 34672, 38809, 43340, 47280, 52008, 65010, 69344, 77618, 86680, 94560, 104016, 116427, 130020, 155236, 173360, 194045, 208032, 232854, 260040, 310472, 346720, 388090, 426899, 465708, 520080, 582135, 620944, 776180, 853798, 931416, 1040160, 1164270, 1241888, 1280697, 1552360, 1707596, 1862832, 2134495, 2328540, 2561394, 3104720, 3415192, 3725664, 4268990, 4657080, 5122788, 6209440, 6403485, 6830384, 8537980, 9314160, 10245576, 12806970, 13660768, 17075960, 18628320, 20491152, 25613940, 34151920, 40982304, 51227880, 68303840, 102455760, 204911520]

約数ペア:

[(1, 204911520), (2, 102455760), (3, 68303840), (4, 51227880), (5, 40982304), (6, 34151920), (8, 25613940), (10, 20491152), (11, 18628320), (12, 17075960), (15, 13660768), (16, 12806970), (20, 10245576), (22, 9314160), (24, 8537980), (30, 6830384), (32, 6403485), (33, 6209440), (40, 5122788), (44, 4657080), (48, 4268990), (55, 3725664), (60, 3415192), (66, 3104720), (80, 2561394), (88, 2328540), (96, 2134495), (110, 1862832), (120, 1707596), (132, 1552360), (160, 1280697), (165, 1241888), (176, 1164270), (197, 1040160), (220, 931416), (240, 853798), (264, 776180), (330, 620944), (352, 582135), (394, 520080), (440, 465708), (480, 426899), (528, 388090), (591, 346720), (660, 310472), (788, 260040), (880, 232854), (985, 208032), (1056, 194045), (1182, 173360), (1320, 155236), (1576, 130020), (1760, 116427), (1970, 104016), (2167, 94560), (2364, 86680), (2640, 77618), (2955, 69344), (3152, 65010), (3940, 52008), (4334, 47280), (4728, 43340), (5280, 38809), (5910, 34672), (6304, 32505), (6501, 31520), (7880, 26004), (8668, 23640), (9456, 21670), (10835, 18912), (11820, 17336), (13002, 15760)]