81696718

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:448

約数の個数: 32

約数和(自身を含む): 130664448

約数和(自身を除く): 48967730

約数列:

[1, 2, 31, 62, 67, 71, 134, 142, 277, 554, 2077, 2201, 4154, 4402, 4757, 8587, 9514, 17174, 18559, 19667, 37118, 39334, 147467, 294934, 575329, 609677, 1150658, 1219354, 1317689, 2635378, 40848359, 81696718]

約数ペア:

[(1, 81696718), (2, 40848359), (31, 2635378), (62, 1317689), (67, 1219354), (71, 1150658), (134, 609677), (142, 575329), (277, 294934), (554, 147467), (2077, 39334), (2201, 37118), (4154, 19667), (4402, 18559), (4757, 17174), (8587, 9514)]