2017755440

素因数分解:

$2^4\times 5^1\times {\mathrm{25221943}}^1$

素因数の和:25221956

約数の個数: 20

約数和(自身を含む): 4691281584

約数和(自身を除く): 2673526144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25221943, 50443886, 100887772, 126109715, 201775544, 252219430, 403551088, 504438860, 1008877720, 2017755440]

約数ペア:

[(1, 2017755440), (2, 1008877720), (4, 504438860), (5, 403551088), (8, 252219430), (10, 201775544), (16, 126109715), (20, 100887772), (40, 50443886), (80, 25221943)]