17948420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{128203}}^1$

素因数の和:128219

約数の個数: 24

約数和(自身を含む): 43076544

約数和(自身を除く): 25128124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 128203, 256406, 512812, 641015, 897421, 1282030, 1794842, 2564060, 3589684, 4487105, 8974210, 17948420]

約数ペア:

[(1, 17948420), (2, 8974210), (4, 4487105), (5, 3589684), (7, 2564060), (10, 1794842), (14, 1282030), (20, 897421), (28, 641015), (35, 512812), (70, 256406), (140, 128203)]