78649180

素因数分解:

$2^2\times 5^1\times {\mathrm{1627}}^1\times {\mathrm{2417}}^1$

素因数の和:4053

約数の個数: 24

約数和(自身を含む): 165333168

約数和(自身を除く): 86683988

約数列:

[1, 2, 4, 5, 10, 20, 1627, 2417, 3254, 4834, 6508, 8135, 9668, 12085, 16270, 24170, 32540, 48340, 3932459, 7864918, 15729836, 19662295, 39324590, 78649180]

約数ペア:

[(1, 78649180), (2, 39324590), (4, 19662295), (5, 15729836), (10, 7864918), (20, 3932459), (1627, 48340), (2417, 32540), (3254, 24170), (4834, 16270), (6508, 12085), (8135, 9668)]