7948280

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1823}}^1$

素因数の和:1943

約数の個数: 32

約数和(自身を含む): 18057600

約数和(自身を除く): 10109320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 1823, 2180, 3646, 4360, 7292, 9115, 14584, 18230, 36460, 72920, 198707, 397414, 794828, 993535, 1589656, 1987070, 3974140, 7948280]

約数ペア:

[(1, 7948280), (2, 3974140), (4, 1987070), (5, 1589656), (8, 993535), (10, 794828), (20, 397414), (40, 198707), (109, 72920), (218, 36460), (436, 18230), (545, 14584), (872, 9115), (1090, 7292), (1823, 4360), (2180, 3646)]