289334060

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1\times {\mathrm{523}}^1$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 616224000

約数和(自身を除く): 326889940

約数列:

[1, 2, 4, 5, 10, 20, 139, 199, 278, 398, 523, 556, 695, 796, 995, 1046, 1390, 1990, 2092, 2615, 2780, 3980, 5230, 10460, 27661, 55322, 72697, 104077, 110644, 138305, 145394, 208154, 276610, 290788, 363485, 416308, 520385, 553220, 726970, 1040770, 1453940, 2081540, 14466703, 28933406, 57866812, 72333515, 144667030, 289334060]

約数ペア:

[(1, 289334060), (2, 144667030), (4, 72333515), (5, 57866812), (10, 28933406), (20, 14466703), (139, 2081540), (199, 1453940), (278, 1040770), (398, 726970), (523, 553220), (556, 520385), (695, 416308), (796, 363485), (995, 290788), (1046, 276610), (1390, 208154), (1990, 145394), (2092, 138305), (2615, 110644), (2780, 104077), (3980, 72697), (5230, 55322), (10460, 27661)]