2021271880

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{7187}}^1$

素因数の和:7366

約数の個数: 64

約数和(自身を含む): 4657824000

約数和(自身を除く): 2636552120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 89, 158, 178, 316, 356, 395, 445, 632, 712, 790, 890, 1580, 1780, 3160, 3560, 7031, 7187, 14062, 14374, 28124, 28748, 35155, 35935, 56248, 57496, 70310, 71870, 140620, 143740, 281240, 287480, 567773, 639643, 1135546, 1279286, 2271092, 2558572, 2838865, 3198215, 4542184, 5117144, 5677730, 6396430, 11355460, 12792860, 22710920, 25585720, 50531797, 101063594, 202127188, 252658985, 404254376, 505317970, 1010635940, 2021271880]

約数ペア:

[(1, 2021271880), (2, 1010635940), (4, 505317970), (5, 404254376), (8, 252658985), (10, 202127188), (20, 101063594), (40, 50531797), (79, 25585720), (89, 22710920), (158, 12792860), (178, 11355460), (316, 6396430), (356, 5677730), (395, 5117144), (445, 4542184), (632, 3198215), (712, 2838865), (790, 2558572), (890, 2271092), (1580, 1279286), (1780, 1135546), (3160, 639643), (3560, 567773), (7031, 287480), (7187, 281240), (14062, 143740), (14374, 140620), (28124, 71870), (28748, 70310), (35155, 57496), (35935, 56248)]