20289828

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1151}}^1$

素因数の和:1284

約数の個数: 48

約数和(自身を含む): 51480576

約数和(自身を除く): 31190748

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 113, 156, 226, 339, 452, 678, 1151, 1356, 1469, 2302, 2938, 3453, 4407, 4604, 5876, 6906, 8814, 13812, 14963, 17628, 29926, 44889, 59852, 89778, 130063, 179556, 260126, 390189, 520252, 780378, 1560756, 1690819, 3381638, 5072457, 6763276, 10144914, 20289828]

約数ペア:

[(1, 20289828), (2, 10144914), (3, 6763276), (4, 5072457), (6, 3381638), (12, 1690819), (13, 1560756), (26, 780378), (39, 520252), (52, 390189), (78, 260126), (113, 179556), (156, 130063), (226, 89778), (339, 59852), (452, 44889), (678, 29926), (1151, 17628), (1356, 14963), (1469, 13812), (2302, 8814), (2938, 6906), (3453, 5876), (4407, 4604)]