16641680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{18911}}^1$

素因数の和:18935

約数の個数: 40

約数和(自身を含む): 42211584

約数和(自身を除く): 25569904

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 18911, 37822, 75644, 94555, 151288, 189110, 208021, 302576, 378220, 416042, 756440, 832084, 1040105, 1512880, 1664168, 2080210, 3328336, 4160420, 8320840, 16641680]

約数ペア:

[(1, 16641680), (2, 8320840), (4, 4160420), (5, 3328336), (8, 2080210), (10, 1664168), (11, 1512880), (16, 1040105), (20, 832084), (22, 756440), (40, 416042), (44, 378220), (55, 302576), (80, 208021), (88, 189110), (110, 151288), (176, 94555), (220, 75644), (440, 37822), (880, 18911)]