256519172

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1$

素因数の和:361

約数の個数: 96

約数和(自身を含む): 578027520

約数和(自身を除く): 321508348

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 127, 179, 182, 217, 254, 358, 364, 403, 434, 508, 716, 806, 868, 889, 1253, 1612, 1651, 1778, 2327, 2506, 2821, 3302, 3556, 3937, 4654, 5012, 5549, 5642, 6604, 7874, 9308, 11098, 11284, 11557, 15748, 16289, 22196, 22733, 23114, 27559, 32578, 38843, 45466, 46228, 51181, 55118, 65156, 72137, 77686, 90932, 102362, 110236, 144274, 155372, 159131, 204724, 288548, 295529, 318262, 358267, 504959, 591058, 636524, 704723, 716534, 1009918, 1182116, 1409446, 1433068, 2019836, 2068703, 2818892, 4137406, 4933061, 8274812, 9161399, 9866122, 18322798, 19732244, 36645596, 64129793, 128259586, 256519172]

約数ペア:

[(1, 256519172), (2, 128259586), (4, 64129793), (7, 36645596), (13, 19732244), (14, 18322798), (26, 9866122), (28, 9161399), (31, 8274812), (52, 4933061), (62, 4137406), (91, 2818892), (124, 2068703), (127, 2019836), (179, 1433068), (182, 1409446), (217, 1182116), (254, 1009918), (358, 716534), (364, 704723), (403, 636524), (434, 591058), (508, 504959), (716, 358267), (806, 318262), (868, 295529), (889, 288548), (1253, 204724), (1612, 159131), (1651, 155372), (1778, 144274), (2327, 110236), (2506, 102362), (2821, 90932), (3302, 77686), (3556, 72137), (3937, 65156), (4654, 55118), (5012, 51181), (5549, 46228), (5642, 45466), (6604, 38843), (7874, 32578), (9308, 27559), (11098, 23114), (11284, 22733), (11557, 22196), (15748, 16289)]