3978889240

素因数分解:

$2^3\times 5^1\times {\mathrm{99472231}}^1$

素因数の和:99472242

約数の個数: 16

約数和(自身を含む): 8952500880

約数和(自身を除く): 4973611640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 99472231, 198944462, 397888924, 497361155, 795777848, 994722310, 1989444620, 3978889240]

約数ペア:

[(1, 3978889240), (2, 1989444620), (4, 994722310), (5, 795777848), (8, 497361155), (10, 397888924), (20, 198944462), (40, 99472231)]