139418990

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{31051}}^1$

素因数の和:31507

約数の個数: 16

約数和(自身を含む): 251521200

約数和(自身を除く): 112102210

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4490, 31051, 62102, 155255, 310510, 13941899, 27883798, 69709495, 139418990]

約数ペア:

[(1, 139418990), (2, 69709495), (5, 27883798), (10, 13941899), (449, 310510), (898, 155255), (2245, 62102), (4490, 31051)]