256957992

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{233}}^1$

素因数の和:332

約数の個数: 144

約数和(自身を含む): 756454140

約数和(自身を除く): 499496148

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 53, 68, 72, 102, 106, 136, 153, 159, 204, 212, 233, 289, 306, 318, 408, 424, 466, 477, 578, 612, 636, 699, 867, 901, 932, 954, 1156, 1224, 1272, 1398, 1734, 1802, 1864, 1908, 2097, 2312, 2601, 2703, 2796, 3468, 3604, 3816, 3961, 4194, 5202, 5406, 5592, 6936, 7208, 7922, 8109, 8388, 10404, 10812, 11883, 12349, 15317, 15844, 16218, 16776, 20808, 21624, 23766, 24698, 30634, 31688, 32436, 35649, 37047, 45951, 47532, 49396, 61268, 64872, 67337, 71298, 74094, 91902, 95064, 98792, 111141, 122536, 134674, 137853, 142596, 148188, 183804, 202011, 209933, 222282, 269348, 275706, 285192, 296376, 367608, 404022, 419866, 444564, 538696, 551412, 606033, 629799, 808044, 839732, 889128, 1102824, 1212066, 1259598, 1616088, 1679464, 1889397, 2424132, 2519196, 3568861, 3778794, 4848264, 5038392, 7137722, 7557588, 10706583, 14275444, 15115176, 21413166, 28550888, 32119749, 42826332, 64239498, 85652664, 128478996, 256957992]

約数ペア:

[(1, 256957992), (2, 128478996), (3, 85652664), (4, 64239498), (6, 42826332), (8, 32119749), (9, 28550888), (12, 21413166), (17, 15115176), (18, 14275444), (24, 10706583), (34, 7557588), (36, 7137722), (51, 5038392), (53, 4848264), (68, 3778794), (72, 3568861), (102, 2519196), (106, 2424132), (136, 1889397), (153, 1679464), (159, 1616088), (204, 1259598), (212, 1212066), (233, 1102824), (289, 889128), (306, 839732), (318, 808044), (408, 629799), (424, 606033), (466, 551412), (477, 538696), (578, 444564), (612, 419866), (636, 404022), (699, 367608), (867, 296376), (901, 285192), (932, 275706), (954, 269348), (1156, 222282), (1224, 209933), (1272, 202011), (1398, 183804), (1734, 148188), (1802, 142596), (1864, 137853), (1908, 134674), (2097, 122536), (2312, 111141), (2601, 98792), (2703, 95064), (2796, 91902), (3468, 74094), (3604, 71298), (3816, 67337), (3961, 64872), (4194, 61268), (5202, 49396), (5406, 47532), (5592, 45951), (6936, 37047), (7208, 35649), (7922, 32436), (8109, 31688), (8388, 30634), (10404, 24698), (10812, 23766), (11883, 21624), (12349, 20808), (15317, 16776), (15844, 16218)]