78398438

素因数分解:

$2^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1\times {\mathrm{701}}^1$

素因数の和:1183

約数の個数: 16

約数和(自身を含む): 118778400

約数和(自身を除く): 40379962

約数列:

[1, 2, 199, 281, 398, 562, 701, 1402, 55919, 111838, 139499, 196981, 278998, 393962, 39199219, 78398438]

約数ペア:

[(1, 78398438), (2, 39199219), (199, 393962), (281, 278998), (398, 196981), (562, 139499), (701, 111838), (1402, 55919)]