31321888

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:186

約数の個数: 96

約数和(自身を含む): 72648576

約数和(自身を除く): 41326688

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 43, 52, 68, 86, 103, 104, 136, 172, 206, 208, 221, 272, 344, 412, 416, 442, 544, 559, 688, 731, 824, 884, 1118, 1339, 1376, 1462, 1648, 1751, 1768, 2236, 2678, 2924, 3296, 3502, 3536, 4429, 4472, 5356, 5848, 7004, 7072, 8858, 8944, 9503, 10712, 11696, 14008, 17716, 17888, 19006, 21424, 22763, 23392, 28016, 35432, 38012, 42848, 45526, 56032, 57577, 70864, 75293, 76024, 91052, 115154, 141728, 150586, 152048, 182104, 230308, 301172, 304096, 364208, 460616, 602344, 728416, 921232, 978809, 1204688, 1842464, 1957618, 2409376, 3915236, 7830472, 15660944, 31321888]

約数ペア:

[(1, 31321888), (2, 15660944), (4, 7830472), (8, 3915236), (13, 2409376), (16, 1957618), (17, 1842464), (26, 1204688), (32, 978809), (34, 921232), (43, 728416), (52, 602344), (68, 460616), (86, 364208), (103, 304096), (104, 301172), (136, 230308), (172, 182104), (206, 152048), (208, 150586), (221, 141728), (272, 115154), (344, 91052), (412, 76024), (416, 75293), (442, 70864), (544, 57577), (559, 56032), (688, 45526), (731, 42848), (824, 38012), (884, 35432), (1118, 28016), (1339, 23392), (1376, 22763), (1462, 21424), (1648, 19006), (1751, 17888), (1768, 17716), (2236, 14008), (2678, 11696), (2924, 10712), (3296, 9503), (3502, 8944), (3536, 8858), (4429, 7072), (4472, 7004), (5356, 5848)]