178880

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:73

約数の個数: 56

約数和(自身を含む): 469392

約数和(自身を除く): 290512

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 64, 65, 80, 86, 104, 130, 160, 172, 208, 215, 260, 320, 344, 416, 430, 520, 559, 688, 832, 860, 1040, 1118, 1376, 1720, 2080, 2236, 2752, 2795, 3440, 4160, 4472, 5590, 6880, 8944, 11180, 13760, 17888, 22360, 35776, 44720, 89440, 178880]

約数ペア:

[(1, 178880), (2, 89440), (4, 44720), (5, 35776), (8, 22360), (10, 17888), (13, 13760), (16, 11180), (20, 8944), (26, 6880), (32, 5590), (40, 4472), (43, 4160), (52, 3440), (64, 2795), (65, 2752), (80, 2236), (86, 2080), (104, 1720), (130, 1376), (160, 1118), (172, 1040), (208, 860), (215, 832), (260, 688), (320, 559), (344, 520), (416, 430)]