64830160

素因数分解:

$2^4\times 5^1\times {\mathrm{810377}}^1$

素因数の和:810390

約数の個数: 20

約数和(自身を含む): 150730308

約数和(自身を除く): 85900148

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 810377, 1620754, 3241508, 4051885, 6483016, 8103770, 12966032, 16207540, 32415080, 64830160]

約数ペア:

[(1, 64830160), (2, 32415080), (4, 16207540), (5, 12966032), (8, 8103770), (10, 6483016), (16, 4051885), (20, 3241508), (40, 1620754), (80, 810377)]