18748840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42611}}^1$

素因数の和:42633

約数の個数: 32

約数和(自身を含む): 46020960

約数和(自身を除く): 27272120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42611, 85222, 170444, 213055, 340888, 426110, 468721, 852220, 937442, 1704440, 1874884, 2343605, 3749768, 4687210, 9374420, 18748840]

約数ペア:

[(1, 18748840), (2, 9374420), (4, 4687210), (5, 3749768), (8, 2343605), (10, 1874884), (11, 1704440), (20, 937442), (22, 852220), (40, 468721), (44, 426110), (55, 340888), (88, 213055), (110, 170444), (220, 85222), (440, 42611)]