42439990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{249647}}^1$

素因数の和:249671

約数の個数: 16

約数和(自身を含む): 80885952

約数和(自身を除く): 38445962

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 249647, 499294, 1248235, 2496470, 4243999, 8487998, 21219995, 42439990]

約数ペア:

[(1, 42439990), (2, 21219995), (5, 8487998), (10, 4243999), (17, 2496470), (34, 1248235), (85, 499294), (170, 249647)]