65570840

素因数分解:

$2^3\times 5^1\times {\mathrm{1639271}}^1$

素因数の和:1639282

約数の個数: 16

約数和(自身を含む): 147534480

約数和(自身を除く): 81963640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1639271, 3278542, 6557084, 8196355, 13114168, 16392710, 32785420, 65570840]

約数ペア:

[(1, 65570840), (2, 32785420), (4, 16392710), (5, 13114168), (8, 8196355), (10, 6557084), (20, 3278542), (40, 1639271)]