28504420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2099}}^1$

素因数の和:2212

約数の個数: 48

約数和(自身を含む): 69148800

約数和(自身を除く): 40644380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1940, 2099, 2716, 3395, 4198, 6790, 8396, 10495, 13580, 14693, 20990, 29386, 41980, 58772, 73465, 146930, 203603, 293860, 407206, 814412, 1018015, 1425221, 2036030, 2850442, 4072060, 5700884, 7126105, 14252210, 28504420]

約数ペア:

[(1, 28504420), (2, 14252210), (4, 7126105), (5, 5700884), (7, 4072060), (10, 2850442), (14, 2036030), (20, 1425221), (28, 1018015), (35, 814412), (70, 407206), (97, 293860), (140, 203603), (194, 146930), (388, 73465), (485, 58772), (679, 41980), (970, 29386), (1358, 20990), (1940, 14693), (2099, 13580), (2716, 10495), (3395, 8396), (4198, 6790)]