18523616

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:375

約数の個数: 48

約数和(自身を含む): 38320128

約数和(自身を除く): 19796512

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 71, 124, 142, 248, 263, 284, 496, 526, 568, 992, 1052, 1136, 2104, 2201, 2272, 4208, 4402, 8153, 8416, 8804, 16306, 17608, 18673, 32612, 35216, 37346, 65224, 70432, 74692, 130448, 149384, 260896, 298768, 578863, 597536, 1157726, 2315452, 4630904, 9261808, 18523616]

約数ペア:

[(1, 18523616), (2, 9261808), (4, 4630904), (8, 2315452), (16, 1157726), (31, 597536), (32, 578863), (62, 298768), (71, 260896), (124, 149384), (142, 130448), (248, 74692), (263, 70432), (284, 65224), (496, 37346), (526, 35216), (568, 32612), (992, 18673), (1052, 17608), (1136, 16306), (2104, 8804), (2201, 8416), (2272, 8153), (4208, 4402)]