139060

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1$

素因数の和:435

約数の個数: 24

約数和(自身を含む): 309960

約数和(自身を除く): 170900

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 409, 818, 1636, 2045, 4090, 6953, 8180, 13906, 27812, 34765, 69530, 139060]

約数ペア:

[(1, 139060), (2, 69530), (4, 34765), (5, 27812), (10, 13906), (17, 8180), (20, 6953), (34, 4090), (68, 2045), (85, 1636), (170, 818), (340, 409)]