66446660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{474619}}^1$

素因数の和:474635

約数の個数: 24

約数和(自身を含む): 159472320

約数和(自身を除く): 93025660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 474619, 949238, 1898476, 2373095, 3322333, 4746190, 6644666, 9492380, 13289332, 16611665, 33223330, 66446660]

約数ペア:

[(1, 66446660), (2, 33223330), (4, 16611665), (5, 13289332), (7, 9492380), (10, 6644666), (14, 4746190), (20, 3322333), (28, 2373095), (35, 1898476), (70, 949238), (140, 474619)]