20249959480

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1031057}}^1$

素因数の和:1031559

約数の個数: 32

約数和(自身を含む): 45655248240

約数和(自身を除く): 25405288760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 19640, 1031057, 2062114, 4124228, 5155285, 8248456, 10310570, 20621140, 41242280, 506248987, 1012497974, 2024995948, 2531244935, 4049991896, 5062489870, 10124979740, 20249959480]

約数ペア:

[(1, 20249959480), (2, 10124979740), (4, 5062489870), (5, 4049991896), (8, 2531244935), (10, 2024995948), (20, 1012497974), (40, 506248987), (491, 41242280), (982, 20621140), (1964, 10310570), (2455, 8248456), (3928, 5155285), (4910, 4124228), (9820, 2062114), (19640, 1031057)]