209218160

素因数分解:

$2^4\times 5^1\times {\mathrm{2615227}}^1$

素因数の和:2615240

約数の個数: 20

約数和(自身を含む): 486432408

約数和(自身を除く): 277214248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2615227, 5230454, 10460908, 13076135, 20921816, 26152270, 41843632, 52304540, 104609080, 209218160]

約数ペア:

[(1, 209218160), (2, 104609080), (4, 52304540), (5, 41843632), (8, 26152270), (10, 20921816), (16, 13076135), (20, 10460908), (40, 5230454), (80, 2615227)]