61691560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{220327}}^1$

素因数の和:220345

約数の個数: 32

約数和(自身を含む): 158636160

約数和(自身を除く): 96944600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 220327, 440654, 881308, 1101635, 1542289, 1762616, 2203270, 3084578, 4406540, 6169156, 7711445, 8813080, 12338312, 15422890, 30845780, 61691560]

約数ペア:

[(1, 61691560), (2, 30845780), (4, 15422890), (5, 12338312), (7, 8813080), (8, 7711445), (10, 6169156), (14, 4406540), (20, 3084578), (28, 2203270), (35, 1762616), (40, 1542289), (56, 1101635), (70, 881308), (140, 440654), (280, 220327)]