204954960

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{121997}}^1$

素因数の和:122020

約数の個数: 80

約数和(自身を含む): 726132096

約数和(自身を除く): 521177136

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 121997, 243994, 365991, 487988, 609985, 731982, 853979, 975976, 1219970, 1463964, 1707958, 1829955, 1951952, 2439940, 2561937, 2927928, 3415916, 3659910, 4269895, 4879880, 5123874, 5855856, 6831832, 7319820, 8539790, 9759760, 10247748, 12809685, 13663664, 14639640, 17079580, 20495496, 25619370, 29279280, 34159160, 40990992, 51238740, 68318320, 102477480, 204954960]

約数ペア:

[(1, 204954960), (2, 102477480), (3, 68318320), (4, 51238740), (5, 40990992), (6, 34159160), (7, 29279280), (8, 25619370), (10, 20495496), (12, 17079580), (14, 14639640), (15, 13663664), (16, 12809685), (20, 10247748), (21, 9759760), (24, 8539790), (28, 7319820), (30, 6831832), (35, 5855856), (40, 5123874), (42, 4879880), (48, 4269895), (56, 3659910), (60, 3415916), (70, 2927928), (80, 2561937), (84, 2439940), (105, 1951952), (112, 1829955), (120, 1707958), (140, 1463964), (168, 1219970), (210, 975976), (240, 853979), (280, 731982), (336, 609985), (420, 487988), (560, 365991), (840, 243994), (1680, 121997)]