81144240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1699}}^1$

素因数の和:1914

約数の個数: 80

約数和(自身を含む): 252960000

約数和(自身を除く): 171815760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 199, 240, 398, 597, 796, 995, 1194, 1592, 1699, 1990, 2388, 2985, 3184, 3398, 3980, 4776, 5097, 5970, 6796, 7960, 8495, 9552, 10194, 11940, 13592, 15920, 16990, 20388, 23880, 25485, 27184, 33980, 40776, 47760, 50970, 67960, 81552, 101940, 135920, 203880, 338101, 407760, 676202, 1014303, 1352404, 1690505, 2028606, 2704808, 3381010, 4057212, 5071515, 5409616, 6762020, 8114424, 10143030, 13524040, 16228848, 20286060, 27048080, 40572120, 81144240]

約数ペア:

[(1, 81144240), (2, 40572120), (3, 27048080), (4, 20286060), (5, 16228848), (6, 13524040), (8, 10143030), (10, 8114424), (12, 6762020), (15, 5409616), (16, 5071515), (20, 4057212), (24, 3381010), (30, 2704808), (40, 2028606), (48, 1690505), (60, 1352404), (80, 1014303), (120, 676202), (199, 407760), (240, 338101), (398, 203880), (597, 135920), (796, 101940), (995, 81552), (1194, 67960), (1592, 50970), (1699, 47760), (1990, 40776), (2388, 33980), (2985, 27184), (3184, 25485), (3398, 23880), (3980, 20388), (4776, 16990), (5097, 15920), (5970, 13592), (6796, 11940), (7960, 10194), (8495, 9552)]