149780240

素因数分解:

$2^4\times 5^1\times {\mathrm{1872253}}^1$

素因数の和:1872266

約数の個数: 20

約数和(自身を含む): 348239244

約数和(自身を除く): 198459004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1872253, 3744506, 7489012, 9361265, 14978024, 18722530, 29956048, 37445060, 74890120, 149780240]

約数ペア:

[(1, 149780240), (2, 74890120), (4, 37445060), (5, 29956048), (8, 18722530), (10, 14978024), (16, 9361265), (20, 7489012), (40, 3744506), (80, 1872253)]