17988520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40883}}^1$

素因数の和:40905

約数の個数: 32

約数和(自身を含む): 44154720

約数和(自身を除く): 26166200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 40883, 81766, 163532, 204415, 327064, 408830, 449713, 817660, 899426, 1635320, 1798852, 2248565, 3597704, 4497130, 8994260, 17988520]

約数ペア:

[(1, 17988520), (2, 8994260), (4, 4497130), (5, 3597704), (8, 2248565), (10, 1798852), (11, 1635320), (20, 899426), (22, 817660), (40, 449713), (44, 408830), (55, 327064), (88, 204415), (110, 163532), (220, 81766), (440, 40883)]