16421840

素因数分解:

$2^4\times 5^1\times {\mathrm{233}}^1\times {\mathrm{881}}^1$

素因数の和:1127

約数の個数: 40

約数和(自身を含む): 38388168

約数和(自身を除く): 21966328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 233, 466, 881, 932, 1165, 1762, 1864, 2330, 3524, 3728, 4405, 4660, 7048, 8810, 9320, 14096, 17620, 18640, 35240, 70480, 205273, 410546, 821092, 1026365, 1642184, 2052730, 3284368, 4105460, 8210920, 16421840]

約数ペア:

[(1, 16421840), (2, 8210920), (4, 4105460), (5, 3284368), (8, 2052730), (10, 1642184), (16, 1026365), (20, 821092), (40, 410546), (80, 205273), (233, 70480), (466, 35240), (881, 18640), (932, 17620), (1165, 14096), (1762, 9320), (1864, 8810), (2330, 7048), (3524, 4660), (3728, 4405)]