51840

素因数分解:

$2^7\times 3^4\times 5^1$

素因数の和:31

約数の個数: 80

約数和(自身を含む): 185130

約数和(自身を除く): 133290

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, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 270, 288, 320, 324, 360, 384, 405, 432, 480, 540, 576, 640, 648, 720, 810, 864, 960, 1080, 1152, 1296, 1440, 1620, 1728, 1920, 2160, 2592, 2880, 3240, 3456, 4320, 5184, 5760, 6480, 8640, 10368, 12960, 17280, 25920, 51840]

約数ペア:

[(1, 51840), (2, 25920), (3, 17280), (4, 12960), (5, 10368), (6, 8640), (8, 6480), (9, 5760), (10, 5184), (12, 4320), (15, 3456), (16, 3240), (18, 2880), (20, 2592), (24, 2160), (27, 1920), (30, 1728), (32, 1620), (36, 1440), (40, 1296), (45, 1152), (48, 1080), (54, 960), (60, 864), (64, 810), (72, 720), (80, 648), (81, 640), (90, 576), (96, 540), (108, 480), (120, 432), (128, 405), (135, 384), (144, 360), (160, 324), (162, 320), (180, 288), (192, 270), (216, 240)]