16278820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{42839}}^1$

素因数の和:42867

約数の個数: 24

約数和(自身を含む): 35985600

約数和(自身を除く): 19706780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 42839, 85678, 171356, 214195, 428390, 813941, 856780, 1627882, 3255764, 4069705, 8139410, 16278820]

約数ペア:

[(1, 16278820), (2, 8139410), (4, 4069705), (5, 3255764), (10, 1627882), (19, 856780), (20, 813941), (38, 428390), (76, 214195), (95, 171356), (190, 85678), (380, 42839)]