80536640

素因数分解:

$2^6\times 5^1\times {\mathrm{251677}}^1$

素因数の和:251694

約数の個数: 28

約数和(自身を含む): 191778636

約数和(自身を除く): 111241996

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 251677, 503354, 1006708, 1258385, 2013416, 2516770, 4026832, 5033540, 8053664, 10067080, 16107328, 20134160, 40268320, 80536640]

約数ペア:

[(1, 80536640), (2, 40268320), (4, 20134160), (5, 16107328), (8, 10067080), (10, 8053664), (16, 5033540), (20, 4026832), (32, 2516770), (40, 2013416), (64, 1258385), (80, 1006708), (160, 503354), (320, 251677)]