80688520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{183383}}^1$

素因数の和:183405

約数の個数: 32

約数和(自身を含む): 198054720

約数和(自身を除く): 117366200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 183383, 366766, 733532, 916915, 1467064, 1833830, 2017213, 3667660, 4034426, 7335320, 8068852, 10086065, 16137704, 20172130, 40344260, 80688520]

約数ペア:

[(1, 80688520), (2, 40344260), (4, 20172130), (5, 16137704), (8, 10086065), (10, 8068852), (11, 7335320), (20, 4034426), (22, 3667660), (40, 2017213), (44, 1833830), (55, 1467064), (88, 916915), (110, 733532), (220, 366766), (440, 183383)]