21468027720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{53419}}^1$

素因数の和:53647

約数の個数: 128

約数和(自身を含む): 68539996800

約数和(自身を除く): 47071969080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 197, 204, 255, 340, 394, 408, 510, 591, 680, 788, 985, 1020, 1182, 1576, 1970, 2040, 2364, 2955, 3349, 3940, 4728, 5910, 6698, 7880, 10047, 11820, 13396, 16745, 20094, 23640, 26792, 33490, 40188, 50235, 53419, 66980, 80376, 100470, 106838, 133960, 160257, 200940, 213676, 267095, 320514, 401880, 427352, 534190, 641028, 801285, 908123, 1068380, 1282056, 1602570, 1816246, 2136760, 2724369, 3205140, 3632492, 4540615, 5448738, 6410280, 7264984, 9081230, 10523543, 10897476, 13621845, 18162460, 21047086, 21794952, 27243690, 31570629, 36324920, 42094172, 52617715, 54487380, 63141258, 84188344, 105235430, 108974760, 126282516, 157853145, 178900231, 210470860, 252565032, 315706290, 357800462, 420941720, 536700693, 631412580, 715600924, 894501155, 1073401386, 1262825160, 1431201848, 1789002310, 2146802772, 2683503465, 3578004620, 4293605544, 5367006930, 7156009240, 10734013860, 21468027720]

約数ペア:

[(1, 21468027720), (2, 10734013860), (3, 7156009240), (4, 5367006930), (5, 4293605544), (6, 3578004620), (8, 2683503465), (10, 2146802772), (12, 1789002310), (15, 1431201848), (17, 1262825160), (20, 1073401386), (24, 894501155), (30, 715600924), (34, 631412580), (40, 536700693), (51, 420941720), (60, 357800462), (68, 315706290), (85, 252565032), (102, 210470860), (120, 178900231), (136, 157853145), (170, 126282516), (197, 108974760), (204, 105235430), (255, 84188344), (340, 63141258), (394, 54487380), (408, 52617715), (510, 42094172), (591, 36324920), (680, 31570629), (788, 27243690), (985, 21794952), (1020, 21047086), (1182, 18162460), (1576, 13621845), (1970, 10897476), (2040, 10523543), (2364, 9081230), (2955, 7264984), (3349, 6410280), (3940, 5448738), (4728, 4540615), (5910, 3632492), (6698, 3205140), (7880, 2724369), (10047, 2136760), (11820, 1816246), (13396, 1602570), (16745, 1282056), (20094, 1068380), (23640, 908123), (26792, 801285), (33490, 641028), (40188, 534190), (50235, 427352), (53419, 401880), (66980, 320514), (80376, 267095), (100470, 213676), (106838, 200940), (133960, 160257)]