20705760

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{4793}}^1$

素因数の和:4817

約数の個数: 96

約数和(自身を含む): 72485280

約数和(自身を除く): 51779520

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, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, 4320, 4793, 9586, 14379, 19172, 23965, 28758, 38344, 43137, 47930, 57516, 71895, 76688, 86274, 95860, 115032, 129411, 143790, 153376, 172548, 191720, 215685, 230064, 258822, 287580, 345096, 383440, 431370, 460128, 517644, 575160, 647055, 690192, 766880, 862740, 1035288, 1150320, 1294110, 1380384, 1725480, 2070576, 2300640, 2588220, 3450960, 4141152, 5176440, 6901920, 10352880, 20705760]

約数ペア:

[(1, 20705760), (2, 10352880), (3, 6901920), (4, 5176440), (5, 4141152), (6, 3450960), (8, 2588220), (9, 2300640), (10, 2070576), (12, 1725480), (15, 1380384), (16, 1294110), (18, 1150320), (20, 1035288), (24, 862740), (27, 766880), (30, 690192), (32, 647055), (36, 575160), (40, 517644), (45, 460128), (48, 431370), (54, 383440), (60, 345096), (72, 287580), (80, 258822), (90, 230064), (96, 215685), (108, 191720), (120, 172548), (135, 153376), (144, 143790), (160, 129411), (180, 115032), (216, 95860), (240, 86274), (270, 76688), (288, 71895), (360, 57516), (432, 47930), (480, 43137), (540, 38344), (720, 28758), (864, 23965), (1080, 19172), (1440, 14379), (2160, 9586), (4320, 4793)]