66992720

素因数分解:

$2^4\times 5^1\times {\mathrm{837409}}^1$

素因数の和:837422

約数の個数: 20

約数和(自身を含む): 155758260

約数和(自身を除く): 88765540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 837409, 1674818, 3349636, 4187045, 6699272, 8374090, 13398544, 16748180, 33496360, 66992720]

約数ペア:

[(1, 66992720), (2, 33496360), (4, 16748180), (5, 13398544), (8, 8374090), (10, 6699272), (16, 4187045), (20, 3349636), (40, 1674818), (80, 837409)]