20180778028

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1\times {\mathrm{18503}}^1$

素因数の和:18766

約数の個数: 48

約数和(自身を含む): 37801451520

約数和(自身を除く): 17620673492

約数列:

[1, 2, 4, 19, 38, 76, 113, 127, 226, 254, 452, 508, 2147, 2413, 4294, 4826, 8588, 9652, 14351, 18503, 28702, 37006, 57404, 74012, 272669, 351557, 545338, 703114, 1090676, 1406228, 2090839, 2349881, 4181678, 4699762, 8363356, 9399524, 39725941, 44647739, 79451882, 89295478, 158903764, 178590956, 265536553, 531073106, 1062146212, 5045194507, 10090389014, 20180778028]

約数ペア:

[(1, 20180778028), (2, 10090389014), (4, 5045194507), (19, 1062146212), (38, 531073106), (76, 265536553), (113, 178590956), (127, 158903764), (226, 89295478), (254, 79451882), (452, 44647739), (508, 39725941), (2147, 9399524), (2413, 8363356), (4294, 4699762), (4826, 4181678), (8588, 2349881), (9652, 2090839), (14351, 1406228), (18503, 1090676), (28702, 703114), (37006, 545338), (57404, 351557), (74012, 272669)]