16828420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1693}}^1$

素因数の和:1780

約数の個数: 48

約数和(自身を含む): 40981248

約数和(自身を除く): 24152828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1693, 1988, 2485, 3386, 4970, 6772, 8465, 9940, 11851, 16930, 23702, 33860, 47404, 59255, 118510, 120203, 237020, 240406, 480812, 601015, 841421, 1202030, 1682842, 2404060, 3365684, 4207105, 8414210, 16828420]

約数ペア:

[(1, 16828420), (2, 8414210), (4, 4207105), (5, 3365684), (7, 2404060), (10, 1682842), (14, 1202030), (20, 841421), (28, 601015), (35, 480812), (70, 240406), (71, 237020), (140, 120203), (142, 118510), (284, 59255), (355, 47404), (497, 33860), (710, 23702), (994, 16930), (1420, 11851), (1693, 9940), (1988, 8465), (2485, 6772), (3386, 4970)]