1289656

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 2597760

約数和(自身を除く): 1308104

約数列:

[1, 2, 4, 8, 23, 43, 46, 86, 92, 163, 172, 184, 326, 344, 652, 989, 1304, 1978, 3749, 3956, 7009, 7498, 7912, 14018, 14996, 28036, 29992, 56072, 161207, 322414, 644828, 1289656]

約数ペア:

[(1, 1289656), (2, 644828), (4, 322414), (8, 161207), (23, 56072), (43, 29992), (46, 28036), (86, 14996), (92, 14018), (163, 7912), (172, 7498), (184, 7009), (326, 3956), (344, 3749), (652, 1978), (989, 1304)]