209280560

素因数分解:

$2^4\times 5^1\times {\mathrm{2616007}}^1$

素因数の和:2616020

約数の個数: 20

約数和(自身を含む): 486577488

約数和(自身を除く): 277296928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2616007, 5232014, 10464028, 13080035, 20928056, 26160070, 41856112, 52320140, 104640280, 209280560]

約数ペア:

[(1, 209280560), (2, 104640280), (4, 52320140), (5, 41856112), (8, 26160070), (10, 20928056), (16, 13080035), (20, 10464028), (40, 5232014), (80, 2616007)]