28226840

素因数分解:

$2^3\times 5^1\times {\mathrm{577}}^1\times {\mathrm{1223}}^1$

素因数の和:1811

約数の個数: 32

約数和(自身を含む): 63672480

約数和(自身を除く): 35445640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 577, 1154, 1223, 2308, 2446, 2885, 4616, 4892, 5770, 6115, 9784, 11540, 12230, 23080, 24460, 48920, 705671, 1411342, 2822684, 3528355, 5645368, 7056710, 14113420, 28226840]

約数ペア:

[(1, 28226840), (2, 14113420), (4, 7056710), (5, 5645368), (8, 3528355), (10, 2822684), (20, 1411342), (40, 705671), (577, 48920), (1154, 24460), (1223, 23080), (2308, 12230), (2446, 11540), (2885, 9784), (4616, 6115), (4892, 5770)]