520067920

素因数分解:

$2^4\times 5^1\times {\mathrm{6500849}}^1$

素因数の和:6500862

約数の個数: 20

約数和(自身を含む): 1209158100

約数和(自身を除く): 689090180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6500849, 13001698, 26003396, 32504245, 52006792, 65008490, 104013584, 130016980, 260033960, 520067920]

約数ペア:

[(1, 520067920), (2, 260033960), (4, 130016980), (5, 104013584), (8, 65008490), (10, 52006792), (16, 32504245), (20, 26003396), (40, 13001698), (80, 6500849)]