20980192

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{15991}}^1$

素因数の和:16042

約数の個数: 24

約数和(自身を含む): 42314832

約数和(自身を除く): 21334640

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 164, 328, 656, 1312, 15991, 31982, 63964, 127928, 255856, 511712, 655631, 1311262, 2622524, 5245048, 10490096, 20980192]

約数ペア:

[(1, 20980192), (2, 10490096), (4, 5245048), (8, 2622524), (16, 1311262), (32, 655631), (41, 511712), (82, 255856), (164, 127928), (328, 63964), (656, 31982), (1312, 15991)]