256264528

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{137}}^1$

素因数の和:221

約数の個数: 120

約数和(自身を含む): 596164968

約数和(自身を除く): 339900440

約数列:

[1, 2, 4, 8, 13, 16, 17, 23, 26, 34, 46, 52, 68, 92, 104, 136, 137, 184, 208, 221, 272, 274, 299, 368, 391, 442, 529, 548, 598, 782, 884, 1058, 1096, 1196, 1564, 1768, 1781, 2116, 2192, 2329, 2392, 3128, 3151, 3536, 3562, 4232, 4658, 4784, 5083, 6256, 6302, 6877, 7124, 8464, 8993, 9316, 10166, 12604, 13754, 14248, 17986, 18632, 20332, 25208, 27508, 28496, 30277, 35972, 37264, 40664, 40963, 50416, 53567, 55016, 60554, 71944, 72473, 81328, 81926, 107134, 110032, 116909, 121108, 143888, 144946, 163852, 214268, 233818, 242216, 289892, 327704, 428536, 467636, 484432, 579784, 655408, 696371, 857072, 935272, 942149, 1159568, 1232041, 1392742, 1870544, 1884298, 2464082, 2785484, 3768596, 4928164, 5570968, 7537192, 9856328, 11141936, 15074384, 16016533, 19712656, 32033066, 64066132, 128132264, 256264528]

約数ペア:

[(1, 256264528), (2, 128132264), (4, 64066132), (8, 32033066), (13, 19712656), (16, 16016533), (17, 15074384), (23, 11141936), (26, 9856328), (34, 7537192), (46, 5570968), (52, 4928164), (68, 3768596), (92, 2785484), (104, 2464082), (136, 1884298), (137, 1870544), (184, 1392742), (208, 1232041), (221, 1159568), (272, 942149), (274, 935272), (299, 857072), (368, 696371), (391, 655408), (442, 579784), (529, 484432), (548, 467636), (598, 428536), (782, 327704), (884, 289892), (1058, 242216), (1096, 233818), (1196, 214268), (1564, 163852), (1768, 144946), (1781, 143888), (2116, 121108), (2192, 116909), (2329, 110032), (2392, 107134), (3128, 81926), (3151, 81328), (3536, 72473), (3562, 71944), (4232, 60554), (4658, 55016), (4784, 53567), (5083, 50416), (6256, 40963), (6302, 40664), (6877, 37264), (7124, 35972), (8464, 30277), (8993, 28496), (9316, 27508), (10166, 25208), (12604, 20332), (13754, 18632), (14248, 17986)]