247198420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1765703}}^1$

素因数の和:1765719

約数の個数: 24

約数和(自身を含む): 593276544

約数和(自身を除く): 346078124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1765703, 3531406, 7062812, 8828515, 12359921, 17657030, 24719842, 35314060, 49439684, 61799605, 123599210, 247198420]

約数ペア:

[(1, 247198420), (2, 123599210), (4, 61799605), (5, 49439684), (7, 35314060), (10, 24719842), (14, 17657030), (20, 12359921), (28, 8828515), (35, 7062812), (70, 3531406), (140, 1765703)]