89440

素因数分解:

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

素因数の和:71

約数の個数: 48

約数和(自身を含む): 232848

約数和(自身を除く): 143408

約数列:

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

約数ペア:

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