39478840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13901}}^1$

素因数の和:13983

約数の個数: 32

約数和(自身を含む): 90084960

約数和(自身を除く): 50606120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 13901, 27802, 55604, 69505, 111208, 139010, 278020, 556040, 986971, 1973942, 3947884, 4934855, 7895768, 9869710, 19739420, 39478840]

約数ペア:

[(1, 39478840), (2, 19739420), (4, 9869710), (5, 7895768), (8, 4934855), (10, 3947884), (20, 1973942), (40, 986971), (71, 556040), (142, 278020), (284, 139010), (355, 111208), (568, 69505), (710, 55604), (1420, 27802), (2840, 13901)]