20913090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{499}}^1$

素因数の和:647

約数の個数: 64

約数和(自身を含む): 55296000

約数和(自身を除く): 34382910

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 127, 165, 254, 330, 381, 499, 635, 762, 998, 1270, 1397, 1497, 1905, 2495, 2794, 2994, 3810, 4191, 4990, 5489, 6985, 7485, 8382, 10978, 13970, 14970, 16467, 20955, 27445, 32934, 41910, 54890, 63373, 82335, 126746, 164670, 190119, 316865, 380238, 633730, 697103, 950595, 1394206, 1901190, 2091309, 3485515, 4182618, 6971030, 10456545, 20913090]

約数ペア:

[(1, 20913090), (2, 10456545), (3, 6971030), (5, 4182618), (6, 3485515), (10, 2091309), (11, 1901190), (15, 1394206), (22, 950595), (30, 697103), (33, 633730), (55, 380238), (66, 316865), (110, 190119), (127, 164670), (165, 126746), (254, 82335), (330, 63373), (381, 54890), (499, 41910), (635, 32934), (762, 27445), (998, 20955), (1270, 16467), (1397, 14970), (1497, 13970), (1905, 10978), (2495, 8382), (2794, 7485), (2994, 6985), (3810, 5489), (4191, 4990)]