78432016

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{541}}^1$

素因数の和:620

約数の個数: 80

約数和(自身を含む): 177832368

約数和(自身を除く): 99400352

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 41, 52, 68, 82, 104, 136, 164, 208, 221, 272, 328, 442, 533, 541, 656, 697, 884, 1066, 1082, 1394, 1768, 2132, 2164, 2788, 3536, 4264, 4328, 5576, 7033, 8528, 8656, 9061, 9197, 11152, 14066, 18122, 18394, 22181, 28132, 36244, 36788, 44362, 56264, 72488, 73576, 88724, 112528, 119561, 144976, 147152, 177448, 239122, 288353, 354896, 377077, 478244, 576706, 754154, 956488, 1153412, 1508308, 1912976, 2306824, 3016616, 4613648, 4902001, 6033232, 9804002, 19608004, 39216008, 78432016]

約数ペア:

[(1, 78432016), (2, 39216008), (4, 19608004), (8, 9804002), (13, 6033232), (16, 4902001), (17, 4613648), (26, 3016616), (34, 2306824), (41, 1912976), (52, 1508308), (68, 1153412), (82, 956488), (104, 754154), (136, 576706), (164, 478244), (208, 377077), (221, 354896), (272, 288353), (328, 239122), (442, 177448), (533, 147152), (541, 144976), (656, 119561), (697, 112528), (884, 88724), (1066, 73576), (1082, 72488), (1394, 56264), (1768, 44362), (2132, 36788), (2164, 36244), (2788, 28132), (3536, 22181), (4264, 18394), (4328, 18122), (5576, 14066), (7033, 11152), (8528, 9197), (8656, 9061)]