256268220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:364

約数の個数: 144

約数和(自身を含む): 787046400

約数和(自身を除く): 530778180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 127, 130, 156, 169, 195, 199, 254, 260, 338, 381, 390, 398, 507, 508, 597, 635, 676, 762, 780, 796, 845, 995, 1014, 1194, 1270, 1524, 1651, 1690, 1905, 1990, 2028, 2388, 2535, 2540, 2587, 2985, 3302, 3380, 3810, 3980, 4953, 5070, 5174, 5970, 6604, 7620, 7761, 8255, 9906, 10140, 10348, 11940, 12935, 15522, 16510, 19812, 21463, 24765, 25273, 25870, 31044, 33020, 33631, 38805, 42926, 49530, 50546, 51740, 64389, 67262, 75819, 77610, 85852, 99060, 100893, 101092, 107315, 126365, 128778, 134524, 151638, 155220, 168155, 201786, 214630, 252730, 257556, 303276, 321945, 328549, 336310, 379095, 403572, 429260, 504465, 505460, 643890, 657098, 672620, 758190, 985647, 1008930, 1287780, 1314196, 1516380, 1642745, 1971294, 2017860, 3285490, 3942588, 4271137, 4928235, 6570980, 8542274, 9856470, 12813411, 17084548, 19712940, 21355685, 25626822, 42711370, 51253644, 64067055, 85422740, 128134110, 256268220]

約数ペア:

[(1, 256268220), (2, 128134110), (3, 85422740), (4, 64067055), (5, 51253644), (6, 42711370), (10, 25626822), (12, 21355685), (13, 19712940), (15, 17084548), (20, 12813411), (26, 9856470), (30, 8542274), (39, 6570980), (52, 4928235), (60, 4271137), (65, 3942588), (78, 3285490), (127, 2017860), (130, 1971294), (156, 1642745), (169, 1516380), (195, 1314196), (199, 1287780), (254, 1008930), (260, 985647), (338, 758190), (381, 672620), (390, 657098), (398, 643890), (507, 505460), (508, 504465), (597, 429260), (635, 403572), (676, 379095), (762, 336310), (780, 328549), (796, 321945), (845, 303276), (995, 257556), (1014, 252730), (1194, 214630), (1270, 201786), (1524, 168155), (1651, 155220), (1690, 151638), (1905, 134524), (1990, 128778), (2028, 126365), (2388, 107315), (2535, 101092), (2540, 100893), (2587, 99060), (2985, 85852), (3302, 77610), (3380, 75819), (3810, 67262), (3980, 64389), (4953, 51740), (5070, 50546), (5174, 49530), (5970, 42926), (6604, 38805), (7620, 33631), (7761, 33020), (8255, 31044), (9906, 25870), (10140, 25273), (10348, 24765), (11940, 21463), (12935, 19812), (15522, 16510)]