66631660

素因数分解:

$2^2\times 5^1\times {\mathrm{1559}}^1\times {\mathrm{2137}}^1$

素因数の和:3705

約数の個数: 24

約数和(自身を含む): 140081760

約数和(自身を除く): 73450100

約数列:

[1, 2, 4, 5, 10, 20, 1559, 2137, 3118, 4274, 6236, 7795, 8548, 10685, 15590, 21370, 31180, 42740, 3331583, 6663166, 13326332, 16657915, 33315830, 66631660]

約数ペア:

[(1, 66631660), (2, 33315830), (4, 16657915), (5, 13326332), (10, 6663166), (20, 3331583), (1559, 42740), (2137, 31180), (3118, 21370), (4274, 15590), (6236, 10685), (7795, 8548)]