20214380680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1619}}^1\times {\mathrm{1847}}^1$

素因数の和:3503

約数の個数: 96

約数和(自身を含む): 49307227200

約数和(自身を除く): 29092846520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1619, 1690, 1847, 3238, 3380, 3694, 6476, 6760, 7388, 8095, 9235, 12952, 14776, 16190, 18470, 21047, 24011, 32380, 36940, 42094, 48022, 64760, 73880, 84188, 96044, 105235, 120055, 168376, 192088, 210470, 240110, 273611, 312143, 420940, 480220, 547222, 624286, 841880, 960440, 1094444, 1248572, 1368055, 1560715, 2188888, 2497144, 2736110, 2990293, 3121430, 5472220, 5980586, 6242860, 10944440, 11961172, 12485720, 14951465, 23922344, 29902930, 38873809, 59805860, 77747618, 119611720, 155495236, 194369045, 310990472, 388738090, 505359517, 777476180, 1010719034, 1554952360, 2021438068, 2526797585, 4042876136, 5053595170, 10107190340, 20214380680]

約数ペア:

[(1, 20214380680), (2, 10107190340), (4, 5053595170), (5, 4042876136), (8, 2526797585), (10, 2021438068), (13, 1554952360), (20, 1010719034), (26, 777476180), (40, 505359517), (52, 388738090), (65, 310990472), (104, 194369045), (130, 155495236), (169, 119611720), (260, 77747618), (338, 59805860), (520, 38873809), (676, 29902930), (845, 23922344), (1352, 14951465), (1619, 12485720), (1690, 11961172), (1847, 10944440), (3238, 6242860), (3380, 5980586), (3694, 5472220), (6476, 3121430), (6760, 2990293), (7388, 2736110), (8095, 2497144), (9235, 2188888), (12952, 1560715), (14776, 1368055), (16190, 1248572), (18470, 1094444), (21047, 960440), (24011, 841880), (32380, 624286), (36940, 547222), (42094, 480220), (48022, 420940), (64760, 312143), (73880, 273611), (84188, 240110), (96044, 210470), (105235, 192088), (120055, 168376)]