20292880

素因数分解:

$2^4\times 5^1\times {\mathrm{253661}}^1$

素因数の和:253674

約数の個数: 20

約数和(自身を含む): 47181132

約数和(自身を除く): 26888252

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 253661, 507322, 1014644, 1268305, 2029288, 2536610, 4058576, 5073220, 10146440, 20292880]

約数ペア:

[(1, 20292880), (2, 10146440), (4, 5073220), (5, 4058576), (8, 2536610), (10, 2029288), (16, 1268305), (20, 1014644), (40, 507322), (80, 253661)]