77989718

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{991}}^1$

素因数の和:1140

約数の個数: 24

約数和(自身を含む): 124724160

約数和(自身を除く): 46734442

約数列:

[1, 2, 19, 38, 109, 218, 361, 722, 991, 1982, 2071, 4142, 18829, 37658, 39349, 78698, 108019, 216038, 357751, 715502, 2052361, 4104722, 38994859, 77989718]

約数ペア:

[(1, 77989718), (2, 38994859), (19, 4104722), (38, 2052361), (109, 715502), (218, 357751), (361, 216038), (722, 108019), (991, 78698), (1982, 39349), (2071, 37658), (4142, 18829)]