11520

素因数分解:

$2^8\times 3^2\times 5^1$

素因数の和:27

約数の個数: 54

約数和(自身を含む): 39858

約数和(自身を除く): 28338

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1920, 2304, 2880, 3840, 5760, 11520]

約数ペア:

[(1, 11520), (2, 5760), (3, 3840), (4, 2880), (5, 2304), (6, 1920), (8, 1440), (9, 1280), (10, 1152), (12, 960), (15, 768), (16, 720), (18, 640), (20, 576), (24, 480), (30, 384), (32, 360), (36, 320), (40, 288), (45, 256), (48, 240), (60, 192), (64, 180), (72, 160), (80, 144), (90, 128), (96, 120)]