31998880

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4651}}^1$

素因数の和:4709

約数の個数: 48

約数和(自身を含む): 77372064

約数和(自身を除く): 45373184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3440, 4651, 6880, 9302, 18604, 23255, 37208, 46510, 74416, 93020, 148832, 186040, 199993, 372080, 399986, 744160, 799972, 999965, 1599944, 1999930, 3199888, 3999860, 6399776, 7999720, 15999440, 31998880]

約数ペア:

[(1, 31998880), (2, 15999440), (4, 7999720), (5, 6399776), (8, 3999860), (10, 3199888), (16, 1999930), (20, 1599944), (32, 999965), (40, 799972), (43, 744160), (80, 399986), (86, 372080), (160, 199993), (172, 186040), (215, 148832), (344, 93020), (430, 74416), (688, 46510), (860, 37208), (1376, 23255), (1720, 18604), (3440, 9302), (4651, 6880)]