18440840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41911}}^1$

素因数の和:41933

約数の個数: 32

約数和(自身を含む): 45264960

約数和(自身を除く): 26824120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 41911, 83822, 167644, 209555, 335288, 419110, 461021, 838220, 922042, 1676440, 1844084, 2305105, 3688168, 4610210, 9220420, 18440840]

約数ペア:

[(1, 18440840), (2, 9220420), (4, 4610210), (5, 3688168), (8, 2305105), (10, 1844084), (11, 1676440), (20, 922042), (22, 838220), (40, 461021), (44, 419110), (55, 335288), (88, 209555), (110, 167644), (220, 83822), (440, 41911)]