42499990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{326923}}^1$

素因数の和:326943

約数の個数: 16

約数和(自身を含む): 82384848

約数和(自身を除く): 39884858

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 326923, 653846, 1634615, 3269230, 4249999, 8499998, 21249995, 42499990]

約数ペア:

[(1, 42499990), (2, 21249995), (5, 8499998), (10, 4249999), (13, 3269230), (26, 1634615), (65, 653846), (130, 326923)]