684880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1223}}^1$

素因数の和:1243

約数の個数: 40

約数和(自身を含む): 1821312

約数和(自身を除く): 1136432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1223, 2446, 4892, 6115, 8561, 9784, 12230, 17122, 19568, 24460, 34244, 42805, 48920, 68488, 85610, 97840, 136976, 171220, 342440, 684880]

約数ペア:

[(1, 684880), (2, 342440), (4, 171220), (5, 136976), (7, 97840), (8, 85610), (10, 68488), (14, 48920), (16, 42805), (20, 34244), (28, 24460), (35, 19568), (40, 17122), (56, 12230), (70, 9784), (80, 8561), (112, 6115), (140, 4892), (280, 2446), (560, 1223)]