809540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2381}}^1$

素因数の和:2407

約数の個数: 24

約数和(自身を含む): 1800792

約数和(自身を除く): 991252

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 2381, 4762, 9524, 11905, 23810, 40477, 47620, 80954, 161908, 202385, 404770, 809540]

約数ペア:

[(1, 809540), (2, 404770), (4, 202385), (5, 161908), (10, 80954), (17, 47620), (20, 40477), (34, 23810), (68, 11905), (85, 9524), (170, 4762), (340, 2381)]