180026840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{642953}}^1$

素因数の和:642971

約数の個数: 32

約数和(自身を含む): 462926880

約数和(自身を除く): 282900040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 642953, 1285906, 2571812, 3214765, 4500671, 5143624, 6429530, 9001342, 12859060, 18002684, 22503355, 25718120, 36005368, 45006710, 90013420, 180026840]

約数ペア:

[(1, 180026840), (2, 90013420), (4, 45006710), (5, 36005368), (7, 25718120), (8, 22503355), (10, 18002684), (14, 12859060), (20, 9001342), (28, 6429530), (35, 5143624), (40, 4500671), (56, 3214765), (70, 2571812), (140, 1285906), (280, 642953)]