19390010

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{17789}}^1$

素因数の和:17905

約数の個数: 16

約数和(自身を含む): 35224200

約数和(自身を除く): 15834190

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 17789, 35578, 88945, 177890, 1939001, 3878002, 9695005, 19390010]

約数ペア:

[(1, 19390010), (2, 9695005), (5, 3878002), (10, 1939001), (109, 177890), (218, 88945), (545, 35578), (1090, 17789)]