61540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:207

約数の個数: 24

約数和(自身を含む): 137592

約数和(自身を除く): 76052

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 181, 340, 362, 724, 905, 1810, 3077, 3620, 6154, 12308, 15385, 30770, 61540]

約数ペア:

[(1, 61540), (2, 30770), (4, 15385), (5, 12308), (10, 6154), (17, 3620), (20, 3077), (34, 1810), (68, 905), (85, 724), (170, 362), (181, 340)]