18800040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{22381}}^1$

素因数の和:22402

約数の個数: 64

約数和(自身を含む): 64460160

約数和(自身を除く): 45660120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 22381, 44762, 67143, 89524, 111905, 134286, 156667, 179048, 223810, 268572, 313334, 335715, 447620, 470001, 537144, 626668, 671430, 783335, 895240, 940002, 1253336, 1342860, 1566670, 1880004, 2350005, 2685720, 3133340, 3760008, 4700010, 6266680, 9400020, 18800040]

約数ペア:

[(1, 18800040), (2, 9400020), (3, 6266680), (4, 4700010), (5, 3760008), (6, 3133340), (7, 2685720), (8, 2350005), (10, 1880004), (12, 1566670), (14, 1342860), (15, 1253336), (20, 940002), (21, 895240), (24, 783335), (28, 671430), (30, 626668), (35, 537144), (40, 470001), (42, 447620), (56, 335715), (60, 313334), (70, 268572), (84, 223810), (105, 179048), (120, 156667), (140, 134286), (168, 111905), (210, 89524), (280, 67143), (420, 44762), (840, 22381)]