1778420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{12703}}^1$

素因数の和:12719

約数の個数: 24

約数和(自身を含む): 4268544

約数和(自身を除く): 2490124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 12703, 25406, 50812, 63515, 88921, 127030, 177842, 254060, 355684, 444605, 889210, 1778420]

約数ペア:

[(1, 1778420), (2, 889210), (4, 444605), (5, 355684), (7, 254060), (10, 177842), (14, 127030), (20, 88921), (28, 63515), (35, 50812), (70, 25406), (140, 12703)]