20020492780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1190279}}^1$

素因数の和:1190346

約数の個数: 36

約数和(自身を含む): 43542822960

約数和(自身を除く): 23522330180

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1682, 3364, 4205, 8410, 16820, 1190279, 2380558, 4761116, 5951395, 11902790, 23805580, 34518091, 69036182, 138072364, 172590455, 345180910, 690361820, 1001024639, 2002049278, 4004098556, 5005123195, 10010246390, 20020492780]

約数ペア:

[(1, 20020492780), (2, 10010246390), (4, 5005123195), (5, 4004098556), (10, 2002049278), (20, 1001024639), (29, 690361820), (58, 345180910), (116, 172590455), (145, 138072364), (290, 69036182), (580, 34518091), (841, 23805580), (1682, 11902790), (3364, 5951395), (4205, 4761116), (8410, 2380558), (16820, 1190279)]