209548880

素因数分解:

$2^4\times 5^1\times {\mathrm{2619361}}^1$

素因数の和:2619374

約数の個数: 20

約数和(自身を含む): 487201332

約数和(自身を除く): 277652452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2619361, 5238722, 10477444, 13096805, 20954888, 26193610, 41909776, 52387220, 104774440, 209548880]

約数ペア:

[(1, 209548880), (2, 104774440), (4, 52387220), (5, 41909776), (8, 26193610), (10, 20954888), (16, 13096805), (20, 10477444), (40, 5238722), (80, 2619361)]