80680880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{144073}}^1$

素因数の和:144093

約数の個数: 40

約数和(自身を含む): 214382112

約数和(自身を除く): 133701232

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 144073, 288146, 576292, 720365, 1008511, 1152584, 1440730, 2017022, 2305168, 2881460, 4034044, 5042555, 5762920, 8068088, 10085110, 11525840, 16136176, 20170220, 40340440, 80680880]

約数ペア:

[(1, 80680880), (2, 40340440), (4, 20170220), (5, 16136176), (7, 11525840), (8, 10085110), (10, 8068088), (14, 5762920), (16, 5042555), (20, 4034044), (28, 2881460), (35, 2305168), (40, 2017022), (56, 1440730), (70, 1152584), (80, 1008511), (112, 720365), (140, 576292), (280, 288146), (560, 144073)]