78268640

素因数分解:

$2^5\times 5^1\times {\mathrm{489179}}^1$

素因数の和:489194

約数の個数: 24

約数和(自身を含む): 184910040

約数和(自身を除く): 106641400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 489179, 978358, 1956716, 2445895, 3913432, 4891790, 7826864, 9783580, 15653728, 19567160, 39134320, 78268640]

約数ペア:

[(1, 78268640), (2, 39134320), (4, 19567160), (5, 15653728), (8, 9783580), (10, 7826864), (16, 4891790), (20, 3913432), (32, 2445895), (40, 1956716), (80, 978358), (160, 489179)]