905578160

素因数分解:

$2^4\times 5^1\times {\mathrm{11319727}}^1$

素因数の和:11319740

約数の個数: 20

約数和(自身を含む): 2105469408

約数和(自身を除く): 1199891248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11319727, 22639454, 45278908, 56598635, 90557816, 113197270, 181115632, 226394540, 452789080, 905578160]

約数ペア:

[(1, 905578160), (2, 452789080), (4, 226394540), (5, 181115632), (8, 113197270), (10, 90557816), (16, 56598635), (20, 45278908), (40, 22639454), (80, 11319727)]