2054780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1129}}^1$

素因数の和:1158

約数の個数: 48

約数和(自身を含む): 5315520

約数和(自身を除く): 3260740

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1129, 1820, 2258, 4516, 5645, 7903, 11290, 14677, 15806, 22580, 29354, 31612, 39515, 58708, 73385, 79030, 102739, 146770, 158060, 205478, 293540, 410956, 513695, 1027390, 2054780]

約数ペア:

[(1, 2054780), (2, 1027390), (4, 513695), (5, 410956), (7, 293540), (10, 205478), (13, 158060), (14, 146770), (20, 102739), (26, 79030), (28, 73385), (35, 58708), (52, 39515), (65, 31612), (70, 29354), (91, 22580), (130, 15806), (140, 14677), (182, 11290), (260, 7903), (364, 5645), (455, 4516), (910, 2258), (1129, 1820)]