256461264

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{787}}^1$

素因数の和:905

約数の個数: 120

約数和(自身を含む): 751991552

約数和(自身を除く): 495530288

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 48, 62, 72, 73, 93, 124, 144, 146, 186, 219, 248, 279, 292, 372, 438, 496, 558, 584, 657, 744, 787, 876, 1116, 1168, 1314, 1488, 1574, 1752, 2232, 2263, 2361, 2628, 3148, 3504, 4464, 4526, 4722, 5256, 6296, 6789, 7083, 9052, 9444, 10512, 12592, 13578, 14166, 18104, 18888, 20367, 24397, 27156, 28332, 36208, 37776, 40734, 48794, 54312, 56664, 57451, 73191, 81468, 97588, 108624, 113328, 114902, 146382, 162936, 172353, 195176, 219573, 229804, 292764, 325872, 344706, 390352, 439146, 459608, 517059, 585528, 689412, 878292, 919216, 1034118, 1171056, 1378824, 1756584, 1780981, 2068236, 2757648, 3513168, 3561962, 4136472, 5342943, 7123924, 8272944, 10685886, 14247848, 16028829, 21371772, 28495696, 32057658, 42743544, 64115316, 85487088, 128230632, 256461264]

約数ペア:

[(1, 256461264), (2, 128230632), (3, 85487088), (4, 64115316), (6, 42743544), (8, 32057658), (9, 28495696), (12, 21371772), (16, 16028829), (18, 14247848), (24, 10685886), (31, 8272944), (36, 7123924), (48, 5342943), (62, 4136472), (72, 3561962), (73, 3513168), (93, 2757648), (124, 2068236), (144, 1780981), (146, 1756584), (186, 1378824), (219, 1171056), (248, 1034118), (279, 919216), (292, 878292), (372, 689412), (438, 585528), (496, 517059), (558, 459608), (584, 439146), (657, 390352), (744, 344706), (787, 325872), (876, 292764), (1116, 229804), (1168, 219573), (1314, 195176), (1488, 172353), (1574, 162936), (1752, 146382), (2232, 114902), (2263, 113328), (2361, 108624), (2628, 97588), (3148, 81468), (3504, 73191), (4464, 57451), (4526, 56664), (4722, 54312), (5256, 48794), (6296, 40734), (6789, 37776), (7083, 36208), (9052, 28332), (9444, 27156), (10512, 24397), (12592, 20367), (13578, 18888), (14166, 18104)]