90999818

素因数分解:

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

素因数の和:307

約数の個数: 48

約数和(自身を含む): 174795264

約数和(自身を除く): 83795446

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 127, 182, 217, 254, 403, 434, 806, 889, 1651, 1778, 2821, 3302, 3937, 5642, 7874, 11557, 16129, 23114, 27559, 32258, 51181, 55118, 102362, 112903, 209677, 225806, 358267, 419354, 499999, 716534, 999998, 1467739, 2935478, 3499993, 6499987, 6999986, 12999974, 45499909, 90999818]

約数ペア:

[(1, 90999818), (2, 45499909), (7, 12999974), (13, 6999986), (14, 6499987), (26, 3499993), (31, 2935478), (62, 1467739), (91, 999998), (127, 716534), (182, 499999), (217, 419354), (254, 358267), (403, 225806), (434, 209677), (806, 112903), (889, 102362), (1651, 55118), (1778, 51181), (2821, 32258), (3302, 27559), (3937, 23114), (5642, 16129), (7874, 11557)]