81497745

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:149

約数の個数: 160

約数和(自身を含む): 188179200

約数和(自身を除く): 106681455

約数列:

[1, 3, 5, 7, 9, 15, 17, 19, 21, 27, 35, 45, 51, 57, 63, 81, 85, 89, 95, 105, 119, 133, 135, 153, 171, 189, 255, 267, 285, 315, 323, 357, 399, 405, 445, 459, 513, 567, 595, 623, 665, 765, 801, 855, 945, 969, 1071, 1197, 1335, 1377, 1513, 1539, 1615, 1691, 1785, 1869, 1995, 2261, 2295, 2403, 2565, 2835, 2907, 3115, 3213, 3591, 4005, 4539, 4845, 5073, 5355, 5607, 5985, 6783, 6885, 7209, 7565, 7695, 8455, 8721, 9345, 9639, 10591, 10773, 11305, 11837, 12015, 13617, 14535, 15219, 16065, 16821, 17955, 20349, 22695, 25365, 26163, 28035, 28747, 31773, 33915, 35511, 36045, 40851, 43605, 45657, 48195, 50463, 52955, 53865, 59185, 61047, 68085, 76095, 84105, 86241, 95319, 101745, 106533, 122553, 130815, 136971, 143735, 158865, 177555, 183141, 201229, 204255, 228285, 252315, 258723, 285957, 305235, 319599, 431205, 476595, 532665, 603687, 612765, 684855, 776169, 857871, 915705, 958797, 1006145, 1293615, 1429785, 1597995, 1811061, 2328507, 3018435, 3880845, 4289355, 4793985, 5433183, 9055305, 11642535, 16299549, 27165915, 81497745]

約数ペア:

[(1, 81497745), (3, 27165915), (5, 16299549), (7, 11642535), (9, 9055305), (15, 5433183), (17, 4793985), (19, 4289355), (21, 3880845), (27, 3018435), (35, 2328507), (45, 1811061), (51, 1597995), (57, 1429785), (63, 1293615), (81, 1006145), (85, 958797), (89, 915705), (95, 857871), (105, 776169), (119, 684855), (133, 612765), (135, 603687), (153, 532665), (171, 476595), (189, 431205), (255, 319599), (267, 305235), (285, 285957), (315, 258723), (323, 252315), (357, 228285), (399, 204255), (405, 201229), (445, 183141), (459, 177555), (513, 158865), (567, 143735), (595, 136971), (623, 130815), (665, 122553), (765, 106533), (801, 101745), (855, 95319), (945, 86241), (969, 84105), (1071, 76095), (1197, 68085), (1335, 61047), (1377, 59185), (1513, 53865), (1539, 52955), (1615, 50463), (1691, 48195), (1785, 45657), (1869, 43605), (1995, 40851), (2261, 36045), (2295, 35511), (2403, 33915), (2565, 31773), (2835, 28747), (2907, 28035), (3115, 26163), (3213, 25365), (3591, 22695), (4005, 20349), (4539, 17955), (4845, 16821), (5073, 16065), (5355, 15219), (5607, 14535), (5985, 13617), (6783, 12015), (6885, 11837), (7209, 11305), (7565, 10773), (7695, 10591), (8455, 9639), (8721, 9345)]