64399678

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{199999}}^1$

素因数の和:200031

約数の個数: 16

約数和(自身を含む): 115200000

約数和(自身を除く): 50800322

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 199999, 399998, 1399993, 2799986, 4599977, 9199954, 32199839, 64399678]

約数ペア:

[(1, 64399678), (2, 32199839), (7, 9199954), (14, 4599977), (23, 2799986), (46, 1399993), (161, 399998), (322, 199999)]