221115664

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1777}}^1$

素因数の和:1904

約数の個数: 80

約数和(自身を含む): 539715456

約数和(自身を除く): 318599792

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 101, 112, 154, 176, 202, 308, 404, 616, 707, 808, 1111, 1232, 1414, 1616, 1777, 2222, 2828, 3554, 4444, 5656, 7108, 7777, 8888, 11312, 12439, 14216, 15554, 17776, 19547, 24878, 28432, 31108, 39094, 49756, 62216, 78188, 99512, 124432, 136829, 156376, 179477, 199024, 273658, 312752, 358954, 547316, 717908, 1094632, 1256339, 1435816, 1974247, 2189264, 2512678, 2871632, 3948494, 5025356, 7896988, 10050712, 13819729, 15793976, 20101424, 27639458, 31587952, 55278916, 110557832, 221115664]

約数ペア:

[(1, 221115664), (2, 110557832), (4, 55278916), (7, 31587952), (8, 27639458), (11, 20101424), (14, 15793976), (16, 13819729), (22, 10050712), (28, 7896988), (44, 5025356), (56, 3948494), (77, 2871632), (88, 2512678), (101, 2189264), (112, 1974247), (154, 1435816), (176, 1256339), (202, 1094632), (308, 717908), (404, 547316), (616, 358954), (707, 312752), (808, 273658), (1111, 199024), (1232, 179477), (1414, 156376), (1616, 136829), (1777, 124432), (2222, 99512), (2828, 78188), (3554, 62216), (4444, 49756), (5656, 39094), (7108, 31108), (7777, 28432), (8888, 24878), (11312, 19547), (12439, 17776), (14216, 15554)]