1387693280

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{129449}}^1$

素因数の和:129531

約数の個数: 48

約数和(自身を含む): 3327382800

約数和(自身を除く): 1939689520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 2144, 2680, 5360, 10720, 129449, 258898, 517796, 647245, 1035592, 1294490, 2071184, 2588980, 4142368, 5177960, 8673083, 10355920, 17346166, 20711840, 34692332, 43365415, 69384664, 86730830, 138769328, 173461660, 277538656, 346923320, 693846640, 1387693280]

約数ペア:

[(1, 1387693280), (2, 693846640), (4, 346923320), (5, 277538656), (8, 173461660), (10, 138769328), (16, 86730830), (20, 69384664), (32, 43365415), (40, 34692332), (67, 20711840), (80, 17346166), (134, 10355920), (160, 8673083), (268, 5177960), (335, 4142368), (536, 2588980), (670, 2071184), (1072, 1294490), (1340, 1035592), (2144, 647245), (2680, 517796), (5360, 258898), (10720, 129449)]