78721784

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{227}}^1\times {\mathrm{647}}^1$

素因数の和:947

約数の個数: 32

約数和(自身を含む): 150698880

約数和(自身を除く): 71977096

約数列:

[1, 2, 4, 8, 67, 134, 227, 268, 454, 536, 647, 908, 1294, 1816, 2588, 5176, 15209, 30418, 43349, 60836, 86698, 121672, 146869, 173396, 293738, 346792, 587476, 1174952, 9840223, 19680446, 39360892, 78721784]

約数ペア:

[(1, 78721784), (2, 39360892), (4, 19680446), (8, 9840223), (67, 1174952), (134, 587476), (227, 346792), (268, 293738), (454, 173396), (536, 146869), (647, 121672), (908, 86698), (1294, 60836), (1816, 43349), (2588, 30418), (5176, 15209)]