39645680

素因数分解:

$2^4\times 5^1\times {\mathrm{495571}}^1$

素因数の和:495584

約数の個数: 20

約数和(自身を含む): 92176392

約数和(自身を除く): 52530712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 495571, 991142, 1982284, 2477855, 3964568, 4955710, 7929136, 9911420, 19822840, 39645680]

約数ペア:

[(1, 39645680), (2, 19822840), (4, 9911420), (5, 7929136), (8, 4955710), (10, 3964568), (16, 2477855), (20, 1982284), (40, 991142), (80, 495571)]