389367020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2781193}}^1$

素因数の和:2781209

約数の個数: 24

約数和(自身を含む): 934481184

約数和(自身を除く): 545114164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2781193, 5562386, 11124772, 13905965, 19468351, 27811930, 38936702, 55623860, 77873404, 97341755, 194683510, 389367020]

約数ペア:

[(1, 389367020), (2, 194683510), (4, 97341755), (5, 77873404), (7, 55623860), (10, 38936702), (14, 27811930), (20, 19468351), (28, 13905965), (35, 11124772), (70, 5562386), (140, 2781193)]