638440136

素因数分解:

$2^3\times {\mathrm{2027}}^1\times {\mathrm{39371}}^1$

素因数の和:41404

約数の個数: 16

約数和(自身を含む): 1197696240

約数和(自身を除く): 559256104

約数列:

[1, 2, 4, 8, 2027, 4054, 8108, 16216, 39371, 78742, 157484, 314968, 79805017, 159610034, 319220068, 638440136]

約数ペア:

[(1, 638440136), (2, 319220068), (4, 159610034), (8, 79805017), (2027, 314968), (4054, 157484), (8108, 78742), (16216, 39371)]