20488160

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1663}}^1$

素因数の和:1696

約数の個数: 96

約数和(自身を含む): 60383232

約数和(自身を除く): 39895072

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 352, 385, 440, 560, 616, 770, 880, 1120, 1232, 1540, 1663, 1760, 2464, 3080, 3326, 6160, 6652, 8315, 11641, 12320, 13304, 16630, 18293, 23282, 26608, 33260, 36586, 46564, 53216, 58205, 66520, 73172, 91465, 93128, 116410, 128051, 133040, 146344, 182930, 186256, 232820, 256102, 266080, 292688, 365860, 372512, 465640, 512204, 585376, 640255, 731720, 931280, 1024408, 1280510, 1463440, 1862560, 2048816, 2561020, 2926880, 4097632, 5122040, 10244080, 20488160]

約数ペア:

[(1, 20488160), (2, 10244080), (4, 5122040), (5, 4097632), (7, 2926880), (8, 2561020), (10, 2048816), (11, 1862560), (14, 1463440), (16, 1280510), (20, 1024408), (22, 931280), (28, 731720), (32, 640255), (35, 585376), (40, 512204), (44, 465640), (55, 372512), (56, 365860), (70, 292688), (77, 266080), (80, 256102), (88, 232820), (110, 186256), (112, 182930), (140, 146344), (154, 133040), (160, 128051), (176, 116410), (220, 93128), (224, 91465), (280, 73172), (308, 66520), (352, 58205), (385, 53216), (440, 46564), (560, 36586), (616, 33260), (770, 26608), (880, 23282), (1120, 18293), (1232, 16630), (1540, 13304), (1663, 12320), (1760, 11641), (2464, 8315), (3080, 6652), (3326, 6160)]