64123910

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{15991}}^1$

素因数の和:16399

約数の個数: 16

約数和(自身を含む): 115718112

約数和(自身を除く): 51594202

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 15991, 31982, 79955, 159910, 6412391, 12824782, 32061955, 64123910]

約数ペア:

[(1, 64123910), (2, 32061955), (5, 12824782), (10, 6412391), (401, 159910), (802, 79955), (2005, 31982), (4010, 15991)]