20106784

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1607}}^1$

素因数の和:1657

約数の個数: 48

約数和(自身を含む): 43763328

約数和(自身を除く): 23656544

約数列:

[1, 2, 4, 8, 16, 17, 23, 32, 34, 46, 68, 92, 136, 184, 272, 368, 391, 544, 736, 782, 1564, 1607, 3128, 3214, 6256, 6428, 12512, 12856, 25712, 27319, 36961, 51424, 54638, 73922, 109276, 147844, 218552, 295688, 437104, 591376, 628337, 874208, 1182752, 1256674, 2513348, 5026696, 10053392, 20106784]

約数ペア:

[(1, 20106784), (2, 10053392), (4, 5026696), (8, 2513348), (16, 1256674), (17, 1182752), (23, 874208), (32, 628337), (34, 591376), (46, 437104), (68, 295688), (92, 218552), (136, 147844), (184, 109276), (272, 73922), (368, 54638), (391, 51424), (544, 36961), (736, 27319), (782, 25712), (1564, 12856), (1607, 12512), (3128, 6428), (3214, 6256)]