31251712

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 67991616

約数和(自身を除く): 36739904

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 43, 64, 68, 86, 128, 136, 167, 172, 256, 272, 334, 344, 544, 668, 688, 731, 1088, 1336, 1376, 1462, 2176, 2672, 2752, 2839, 2924, 4352, 5344, 5504, 5678, 5848, 7181, 10688, 11008, 11356, 11696, 14362, 21376, 22712, 23392, 28724, 42752, 45424, 46784, 57448, 90848, 93568, 114896, 122077, 181696, 187136, 229792, 244154, 363392, 459584, 488308, 726784, 919168, 976616, 1838336, 1953232, 3906464, 7812928, 15625856, 31251712]

約数ペア:

[(1, 31251712), (2, 15625856), (4, 7812928), (8, 3906464), (16, 1953232), (17, 1838336), (32, 976616), (34, 919168), (43, 726784), (64, 488308), (68, 459584), (86, 363392), (128, 244154), (136, 229792), (167, 187136), (172, 181696), (256, 122077), (272, 114896), (334, 93568), (344, 90848), (544, 57448), (668, 46784), (688, 45424), (731, 42752), (1088, 28724), (1336, 23392), (1376, 22712), (1462, 21376), (2176, 14362), (2672, 11696), (2752, 11356), (2839, 11008), (2924, 10688), (4352, 7181), (5344, 5848), (5504, 5678)]