8640

素因数分解:

$2^6\times 3^3\times 5^1$

素因数の和:26

約数の個数: 56

約数和(自身を含む): 30480

約数和(自身を除く): 21840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 432, 480, 540, 576, 720, 864, 960, 1080, 1440, 1728, 2160, 2880, 4320, 8640]

約数ペア:

[(1, 8640), (2, 4320), (3, 2880), (4, 2160), (5, 1728), (6, 1440), (8, 1080), (9, 960), (10, 864), (12, 720), (15, 576), (16, 540), (18, 480), (20, 432), (24, 360), (27, 320), (30, 288), (32, 270), (36, 240), (40, 216), (45, 192), (48, 180), (54, 160), (60, 144), (64, 135), (72, 120), (80, 108), (90, 96)]