19957280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:298

約数の個数: 96

約数和(自身を含む): 54722304

約数和(自身を除く): 34765024

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 103, 112, 140, 160, 173, 206, 224, 280, 346, 412, 515, 560, 692, 721, 824, 865, 1030, 1120, 1211, 1384, 1442, 1648, 1730, 2060, 2422, 2768, 2884, 3296, 3460, 3605, 4120, 4844, 5536, 5768, 6055, 6920, 7210, 8240, 9688, 11536, 12110, 13840, 14420, 16480, 17819, 19376, 23072, 24220, 27680, 28840, 35638, 38752, 48440, 57680, 71276, 89095, 96880, 115360, 124733, 142552, 178190, 193760, 249466, 285104, 356380, 498932, 570208, 623665, 712760, 997864, 1247330, 1425520, 1995728, 2494660, 2851040, 3991456, 4989320, 9978640, 19957280]

約数ペア:

[(1, 19957280), (2, 9978640), (4, 4989320), (5, 3991456), (7, 2851040), (8, 2494660), (10, 1995728), (14, 1425520), (16, 1247330), (20, 997864), (28, 712760), (32, 623665), (35, 570208), (40, 498932), (56, 356380), (70, 285104), (80, 249466), (103, 193760), (112, 178190), (140, 142552), (160, 124733), (173, 115360), (206, 96880), (224, 89095), (280, 71276), (346, 57680), (412, 48440), (515, 38752), (560, 35638), (692, 28840), (721, 27680), (824, 24220), (865, 23072), (1030, 19376), (1120, 17819), (1211, 16480), (1384, 14420), (1442, 13840), (1648, 12110), (1730, 11536), (2060, 9688), (2422, 8240), (2768, 7210), (2884, 6920), (3296, 6055), (3460, 5768), (3605, 5536), (4120, 4844)]