83740

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:141

約数の個数: 24

約数和(自身を含む): 181440

約数和(自身を除く): 97700

約数列:

[1, 2, 4, 5, 10, 20, 53, 79, 106, 158, 212, 265, 316, 395, 530, 790, 1060, 1580, 4187, 8374, 16748, 20935, 41870, 83740]

約数ペア:

[(1, 83740), (2, 41870), (4, 20935), (5, 16748), (10, 8374), (20, 4187), (53, 1580), (79, 1060), (106, 790), (158, 530), (212, 395), (265, 316)]