256640568

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:357

約数の個数: 128

約数和(自身を含む): 711659520

約数和(自身を除く): 455018952

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 31, 34, 51, 62, 68, 93, 102, 103, 124, 136, 186, 197, 204, 206, 248, 309, 372, 394, 408, 412, 527, 591, 618, 744, 788, 824, 1054, 1182, 1236, 1576, 1581, 1751, 2108, 2364, 2472, 3162, 3193, 3349, 3502, 4216, 4728, 5253, 6107, 6324, 6386, 6698, 7004, 9579, 10047, 10506, 12214, 12648, 12772, 13396, 14008, 18321, 19158, 20094, 20291, 21012, 24428, 25544, 26792, 36642, 38316, 40188, 40582, 42024, 48856, 54281, 60873, 73284, 76632, 80376, 81164, 103819, 108562, 121746, 146568, 162328, 162843, 207638, 217124, 243492, 311457, 325686, 344947, 415276, 434248, 486984, 622914, 629021, 651372, 689894, 830552, 1034841, 1245828, 1258042, 1302744, 1379788, 1887063, 2069682, 2491656, 2516084, 2759576, 3774126, 4139364, 5032168, 7548252, 8278728, 10693357, 15096504, 21386714, 32080071, 42773428, 64160142, 85546856, 128320284, 256640568]

約数ペア:

[(1, 256640568), (2, 128320284), (3, 85546856), (4, 64160142), (6, 42773428), (8, 32080071), (12, 21386714), (17, 15096504), (24, 10693357), (31, 8278728), (34, 7548252), (51, 5032168), (62, 4139364), (68, 3774126), (93, 2759576), (102, 2516084), (103, 2491656), (124, 2069682), (136, 1887063), (186, 1379788), (197, 1302744), (204, 1258042), (206, 1245828), (248, 1034841), (309, 830552), (372, 689894), (394, 651372), (408, 629021), (412, 622914), (527, 486984), (591, 434248), (618, 415276), (744, 344947), (788, 325686), (824, 311457), (1054, 243492), (1182, 217124), (1236, 207638), (1576, 162843), (1581, 162328), (1751, 146568), (2108, 121746), (2364, 108562), (2472, 103819), (3162, 81164), (3193, 80376), (3349, 76632), (3502, 73284), (4216, 60873), (4728, 54281), (5253, 48856), (6107, 42024), (6324, 40582), (6386, 40188), (6698, 38316), (7004, 36642), (9579, 26792), (10047, 25544), (10506, 24428), (12214, 21012), (12648, 20291), (12772, 20094), (13396, 19158), (14008, 18321)]