2021680900

素因数分解:

$2^2\times 5^2\times {\mathrm{647}}^1\times {\mathrm{31247}}^1$

素因数の和:31908

約数の個数: 36

約数和(自身を含む): 4393968768

約数和(自身を除く): 2372287868

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 647, 1294, 2588, 3235, 6470, 12940, 16175, 31247, 32350, 62494, 64700, 124988, 156235, 312470, 624940, 781175, 1562350, 3124700, 20216809, 40433618, 80867236, 101084045, 202168090, 404336180, 505420225, 1010840450, 2021680900]

約数ペア:

[(1, 2021680900), (2, 1010840450), (4, 505420225), (5, 404336180), (10, 202168090), (20, 101084045), (25, 80867236), (50, 40433618), (100, 20216809), (647, 3124700), (1294, 1562350), (2588, 781175), (3235, 624940), (6470, 312470), (12940, 156235), (16175, 124988), (31247, 64700), (32350, 62494)]