20908960

素因数分解:

$2^5\times 5^1\times {\mathrm{130681}}^1$

素因数の和:130696

約数の個数: 24

約数和(自身を含む): 49397796

約数和(自身を除く): 28488836

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 130681, 261362, 522724, 653405, 1045448, 1306810, 2090896, 2613620, 4181792, 5227240, 10454480, 20908960]

約数ペア:

[(1, 20908960), (2, 10454480), (4, 5227240), (5, 4181792), (8, 2613620), (10, 2090896), (16, 1306810), (20, 1045448), (32, 653405), (40, 522724), (80, 261362), (160, 130681)]