20128242190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{655003}}^1$

素因数の和:655456

約数の個数: 32

約数和(自身を含む): 41501053440

約数和(自身を除く): 21372811250

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 439, 878, 2195, 3073, 4390, 6146, 15365, 30730, 655003, 1310006, 3275015, 4585021, 6550030, 9170042, 22925105, 45850210, 287546317, 575092634, 1437731585, 2012824219, 2875463170, 4025648438, 10064121095, 20128242190]

約数ペア:

[(1, 20128242190), (2, 10064121095), (5, 4025648438), (7, 2875463170), (10, 2012824219), (14, 1437731585), (35, 575092634), (70, 287546317), (439, 45850210), (878, 22925105), (2195, 9170042), (3073, 6550030), (4390, 4585021), (6146, 3275015), (15365, 1310006), (30730, 655003)]