15321920

素因数分解:

$2^6\times 5^1\times {\mathrm{47881}}^1$

素因数の和:47898

約数の個数: 28

約数和(自身を含む): 36486084

約数和(自身を除く): 21164164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 47881, 95762, 191524, 239405, 383048, 478810, 766096, 957620, 1532192, 1915240, 3064384, 3830480, 7660960, 15321920]

約数ペア:

[(1, 15321920), (2, 7660960), (4, 3830480), (5, 3064384), (8, 1915240), (10, 1532192), (16, 957620), (20, 766096), (32, 478810), (40, 383048), (64, 239405), (80, 191524), (160, 95762), (320, 47881)]