25728560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{173}}^1$

素因数の和:223

約数の個数: 120

約数和(自身を含む): 71071344

約数和(自身を除く): 45342784

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 169, 173, 176, 208, 220, 260, 286, 338, 346, 440, 520, 572, 676, 692, 715, 845, 865, 880, 1040, 1144, 1352, 1384, 1430, 1690, 1730, 1859, 1903, 2249, 2288, 2704, 2768, 2860, 3380, 3460, 3718, 3806, 4498, 5720, 6760, 6920, 7436, 7612, 8996, 9295, 9515, 11245, 11440, 13520, 13840, 14872, 15224, 17992, 18590, 19030, 22490, 24739, 29237, 29744, 30448, 35984, 37180, 38060, 44980, 49478, 58474, 74360, 76120, 89960, 98956, 116948, 123695, 146185, 148720, 152240, 179920, 197912, 233896, 247390, 292370, 321607, 395824, 467792, 494780, 584740, 643214, 989560, 1169480, 1286428, 1608035, 1979120, 2338960, 2572856, 3216070, 5145712, 6432140, 12864280, 25728560]

約数ペア:

[(1, 25728560), (2, 12864280), (4, 6432140), (5, 5145712), (8, 3216070), (10, 2572856), (11, 2338960), (13, 1979120), (16, 1608035), (20, 1286428), (22, 1169480), (26, 989560), (40, 643214), (44, 584740), (52, 494780), (55, 467792), (65, 395824), (80, 321607), (88, 292370), (104, 247390), (110, 233896), (130, 197912), (143, 179920), (169, 152240), (173, 148720), (176, 146185), (208, 123695), (220, 116948), (260, 98956), (286, 89960), (338, 76120), (346, 74360), (440, 58474), (520, 49478), (572, 44980), (676, 38060), (692, 37180), (715, 35984), (845, 30448), (865, 29744), (880, 29237), (1040, 24739), (1144, 22490), (1352, 19030), (1384, 18590), (1430, 17992), (1690, 15224), (1730, 14872), (1859, 13840), (1903, 13520), (2249, 11440), (2288, 11245), (2704, 9515), (2768, 9295), (2860, 8996), (3380, 7612), (3460, 7436), (3718, 6920), (3806, 6760), (4498, 5720)]