1643285980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11737757}}^1$

素因数の和:11737773

約数の個数: 24

約数和(自身を含む): 3943886688

約数和(自身を除く): 2300600708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 11737757, 23475514, 46951028, 58688785, 82164299, 117377570, 164328598, 234755140, 328657196, 410821495, 821642990, 1643285980]

約数ペア:

[(1, 1643285980), (2, 821642990), (4, 410821495), (5, 328657196), (7, 234755140), (10, 164328598), (14, 117377570), (20, 82164299), (28, 58688785), (35, 46951028), (70, 23475514), (140, 11737757)]