78821890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{160861}}^1$

素因数の和:160882

約数の個数: 24

約数和(自身を含む): 165044412

約数和(自身を除く): 86222522

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 160861, 321722, 804305, 1126027, 1608610, 2252054, 5630135, 7882189, 11260270, 15764378, 39410945, 78821890]

約数ペア:

[(1, 78821890), (2, 39410945), (5, 15764378), (7, 11260270), (10, 7882189), (14, 5630135), (35, 2252054), (49, 1608610), (70, 1126027), (98, 804305), (245, 321722), (490, 160861)]