39988016

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{80621}}^1$

素因数の和:80660

約数の個数: 20

約数和(自身を含む): 79977024

約数和(自身を除く): 39989008

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 80621, 161242, 322484, 644968, 1289936, 2499251, 4998502, 9997004, 19994008, 39988016]

約数ペア:

[(1, 39988016), (2, 19994008), (4, 9997004), (8, 4998502), (16, 2499251), (31, 1289936), (62, 644968), (124, 322484), (248, 161242), (496, 80621)]