128838172

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{9521}}^1$

素因数の和:9741

約数の個数: 24

約数和(自身を含む): 239954400

約数和(自身を除く): 111116228

約数列:

[1, 2, 4, 17, 34, 68, 199, 398, 796, 3383, 6766, 9521, 13532, 19042, 38084, 161857, 323714, 647428, 1894679, 3789358, 7578716, 32209543, 64419086, 128838172]

約数ペア:

[(1, 128838172), (2, 64419086), (4, 32209543), (17, 7578716), (34, 3789358), (68, 1894679), (199, 647428), (398, 323714), (796, 161857), (3383, 38084), (6766, 19042), (9521, 13532)]