20173878704

素因数分解:

$2^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1652513}}^1$

素因数の和:1652637

約数の個数: 40

約数和(自身を含む): 45080581920

約数和(自身を除く): 24906703216

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 218, 436, 763, 872, 1526, 1744, 3052, 6104, 12208, 1652513, 3305026, 6610052, 11567591, 13220104, 23135182, 26440208, 46270364, 92540728, 180123917, 185081456, 360247834, 720495668, 1260867419, 1440991336, 2521734838, 2881982672, 5043469676, 10086939352, 20173878704]

約数ペア:

[(1, 20173878704), (2, 10086939352), (4, 5043469676), (7, 2881982672), (8, 2521734838), (14, 1440991336), (16, 1260867419), (28, 720495668), (56, 360247834), (109, 185081456), (112, 180123917), (218, 92540728), (436, 46270364), (763, 26440208), (872, 23135182), (1526, 13220104), (1744, 11567591), (3052, 6610052), (6104, 3305026), (12208, 1652513)]