80785840

素因数分解:

$2^4\times 5^1\times {\mathrm{929}}^1\times {\mathrm{1087}}^1$

素因数の和:2029

約数の個数: 40

約数和(自身を含む): 188202240

約数和(自身を除く): 107416400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 929, 1087, 1858, 2174, 3716, 4348, 4645, 5435, 7432, 8696, 9290, 10870, 14864, 17392, 18580, 21740, 37160, 43480, 74320, 86960, 1009823, 2019646, 4039292, 5049115, 8078584, 10098230, 16157168, 20196460, 40392920, 80785840]

約数ペア:

[(1, 80785840), (2, 40392920), (4, 20196460), (5, 16157168), (8, 10098230), (10, 8078584), (16, 5049115), (20, 4039292), (40, 2019646), (80, 1009823), (929, 86960), (1087, 74320), (1858, 43480), (2174, 37160), (3716, 21740), (4348, 18580), (4645, 17392), (5435, 14864), (7432, 10870), (8696, 9290)]