81305690

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{8221}}^1$

素因数の和:8294

約数の個数: 32

約数和(自身を含む): 156283776

約数和(自身を除く): 74978086

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 115, 215, 230, 430, 989, 1978, 4945, 8221, 9890, 16442, 41105, 82210, 189083, 353503, 378166, 707006, 945415, 1767515, 1890830, 3535030, 8130569, 16261138, 40652845, 81305690]

約数ペア:

[(1, 81305690), (2, 40652845), (5, 16261138), (10, 8130569), (23, 3535030), (43, 1890830), (46, 1767515), (86, 945415), (115, 707006), (215, 378166), (230, 353503), (430, 189083), (989, 82210), (1978, 41105), (4945, 16442), (8221, 9890)]