256234920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{179}}^1$

素因数の和:423

約数の個数: 128

約数和(自身を含む): 787968000

約数和(自身を除く): 531733080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 120, 151, 158, 179, 237, 302, 316, 358, 395, 453, 474, 537, 604, 632, 716, 755, 790, 895, 906, 948, 1074, 1185, 1208, 1432, 1510, 1580, 1790, 1812, 1896, 2148, 2265, 2370, 2685, 3020, 3160, 3580, 3624, 4296, 4530, 4740, 5370, 6040, 7160, 9060, 9480, 10740, 11929, 14141, 18120, 21480, 23858, 27029, 28282, 35787, 42423, 47716, 54058, 56564, 59645, 70705, 71574, 81087, 84846, 95432, 108116, 113128, 119290, 135145, 141410, 143148, 162174, 169692, 178935, 212115, 216232, 238580, 270290, 282820, 286296, 324348, 339384, 357870, 405435, 424230, 477160, 540580, 565640, 648696, 715740, 810870, 848460, 1081160, 1431480, 1621740, 1696920, 2135291, 3243480, 4270582, 6405873, 8541164, 10676455, 12811746, 17082328, 21352910, 25623492, 32029365, 42705820, 51246984, 64058730, 85411640, 128117460, 256234920]

約数ペア:

[(1, 256234920), (2, 128117460), (3, 85411640), (4, 64058730), (5, 51246984), (6, 42705820), (8, 32029365), (10, 25623492), (12, 21352910), (15, 17082328), (20, 12811746), (24, 10676455), (30, 8541164), (40, 6405873), (60, 4270582), (79, 3243480), (120, 2135291), (151, 1696920), (158, 1621740), (179, 1431480), (237, 1081160), (302, 848460), (316, 810870), (358, 715740), (395, 648696), (453, 565640), (474, 540580), (537, 477160), (604, 424230), (632, 405435), (716, 357870), (755, 339384), (790, 324348), (895, 286296), (906, 282820), (948, 270290), (1074, 238580), (1185, 216232), (1208, 212115), (1432, 178935), (1510, 169692), (1580, 162174), (1790, 143148), (1812, 141410), (1896, 135145), (2148, 119290), (2265, 113128), (2370, 108116), (2685, 95432), (3020, 84846), (3160, 81087), (3580, 71574), (3624, 70705), (4296, 59645), (4530, 56564), (4740, 54058), (5370, 47716), (6040, 42423), (7160, 35787), (9060, 28282), (9480, 27029), (10740, 23858), (11929, 21480), (14141, 18120)]