20193712

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{443}}^1$

素因数の和:506

約数の個数: 80

約数和(自身を含む): 50211072

約数和(自身を除く): 30017360

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 37, 44, 56, 74, 77, 88, 112, 148, 154, 176, 259, 296, 308, 407, 443, 518, 592, 616, 814, 886, 1036, 1232, 1628, 1772, 2072, 2849, 3101, 3256, 3544, 4144, 4873, 5698, 6202, 6512, 7088, 9746, 11396, 12404, 16391, 19492, 22792, 24808, 32782, 34111, 38984, 45584, 49616, 65564, 68222, 77968, 114737, 131128, 136444, 180301, 229474, 262256, 272888, 360602, 458948, 545776, 721204, 917896, 1262107, 1442408, 1835792, 2524214, 2884816, 5048428, 10096856, 20193712]

約数ペア:

[(1, 20193712), (2, 10096856), (4, 5048428), (7, 2884816), (8, 2524214), (11, 1835792), (14, 1442408), (16, 1262107), (22, 917896), (28, 721204), (37, 545776), (44, 458948), (56, 360602), (74, 272888), (77, 262256), (88, 229474), (112, 180301), (148, 136444), (154, 131128), (176, 114737), (259, 77968), (296, 68222), (308, 65564), (407, 49616), (443, 45584), (518, 38984), (592, 34111), (616, 32782), (814, 24808), (886, 22792), (1036, 19492), (1232, 16391), (1628, 12404), (1772, 11396), (2072, 9746), (2849, 7088), (3101, 6512), (3256, 6202), (3544, 5698), (4144, 4873)]