20779486

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 41287680

約数和(自身を除く): 20508194

約数列:

[1, 2, 7, 13, 14, 26, 29, 31, 58, 62, 91, 127, 182, 203, 217, 254, 377, 403, 406, 434, 754, 806, 889, 899, 1651, 1778, 1798, 2639, 2821, 3302, 3683, 3937, 5278, 5642, 6293, 7366, 7874, 11557, 11687, 12586, 23114, 23374, 25781, 27559, 47879, 51181, 51562, 55118, 81809, 95758, 102362, 114173, 163618, 228346, 335153, 358267, 670306, 716534, 799211, 1484249, 1598422, 2968498, 10389743, 20779486]

約数ペア:

[(1, 20779486), (2, 10389743), (7, 2968498), (13, 1598422), (14, 1484249), (26, 799211), (29, 716534), (31, 670306), (58, 358267), (62, 335153), (91, 228346), (127, 163618), (182, 114173), (203, 102362), (217, 95758), (254, 81809), (377, 55118), (403, 51562), (406, 51181), (434, 47879), (754, 27559), (806, 25781), (889, 23374), (899, 23114), (1651, 12586), (1778, 11687), (1798, 11557), (2639, 7874), (2821, 7366), (3302, 6293), (3683, 5642), (3937, 5278)]