208040240

素因数分解:

$2^4\times 5^1\times {\mathrm{2600503}}^1$

素因数の和:2600516

約数の個数: 20

約数和(自身を含む): 483693744

約数和(自身を除く): 275653504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2600503, 5201006, 10402012, 13002515, 20804024, 26005030, 41608048, 52010060, 104020120, 208040240]

約数ペア:

[(1, 208040240), (2, 104020120), (4, 52010060), (5, 41608048), (8, 26005030), (10, 20804024), (16, 13002515), (20, 10402012), (40, 5201006), (80, 2600503)]