66309680

素因数分解:

$2^4\times 5^1\times {\mathrm{828871}}^1$

素因数の和:828884

約数の個数: 20

約数和(自身を含む): 154170192

約数和(自身を除く): 87860512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 828871, 1657742, 3315484, 4144355, 6630968, 8288710, 13261936, 16577420, 33154840, 66309680]

約数ペア:

[(1, 66309680), (2, 33154840), (4, 16577420), (5, 13261936), (8, 8288710), (10, 6630968), (16, 4144355), (20, 3315484), (40, 1657742), (80, 828871)]