889440080

素因数分解:

$2^4\times 5^1\times {\mathrm{11118001}}^1$

素因数の和:11118014

約数の個数: 20

約数和(自身を含む): 2067948372

約数和(自身を除く): 1178508292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11118001, 22236002, 44472004, 55590005, 88944008, 111180010, 177888016, 222360020, 444720040, 889440080]

約数ペア:

[(1, 889440080), (2, 444720040), (4, 222360020), (5, 177888016), (8, 111180010), (10, 88944008), (16, 55590005), (20, 44472004), (40, 22236002), (80, 11118001)]