157780208

素因数分解:

$2^4\times {\mathrm{487}}^1\times {\mathrm{20249}}^1$

素因数の和:20744

約数の個数: 20

約数和(自身を含む): 306342000

約数和(自身を除く): 148561792

約数列:

[1, 2, 4, 8, 16, 487, 974, 1948, 3896, 7792, 20249, 40498, 80996, 161992, 323984, 9861263, 19722526, 39445052, 78890104, 157780208]

約数ペア:

[(1, 157780208), (2, 78890104), (4, 39445052), (8, 19722526), (16, 9861263), (487, 323984), (974, 161992), (1948, 80996), (3896, 40498), (7792, 20249)]