80625640

素因数分解:

$2^3\times 5^1\times {\mathrm{1361}}^1\times {\mathrm{1481}}^1$

素因数の和:2853

約数の個数: 32

約数和(自身を含む): 181663560

約数和(自身を除く): 101037920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1361, 1481, 2722, 2962, 5444, 5924, 6805, 7405, 10888, 11848, 13610, 14810, 27220, 29620, 54440, 59240, 2015641, 4031282, 8062564, 10078205, 16125128, 20156410, 40312820, 80625640]

約数ペア:

[(1, 80625640), (2, 40312820), (4, 20156410), (5, 16125128), (8, 10078205), (10, 8062564), (20, 4031282), (40, 2015641), (1361, 59240), (1481, 54440), (2722, 29620), (2962, 27220), (5444, 14810), (5924, 13610), (6805, 11848), (7405, 10888)]