78157936

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{643}}^1$

素因数の和:829

約数の個数: 40

約数和(自身を含む): 155240064

約数和(自身を除く): 77082128

約数列:

[1, 2, 4, 8, 16, 71, 107, 142, 214, 284, 428, 568, 643, 856, 1136, 1286, 1712, 2572, 5144, 7597, 10288, 15194, 30388, 45653, 60776, 68801, 91306, 121552, 137602, 182612, 275204, 365224, 550408, 730448, 1100816, 4884871, 9769742, 19539484, 39078968, 78157936]

約数ペア:

[(1, 78157936), (2, 39078968), (4, 19539484), (8, 9769742), (16, 4884871), (71, 1100816), (107, 730448), (142, 550408), (214, 365224), (284, 275204), (428, 182612), (568, 137602), (643, 121552), (856, 91306), (1136, 68801), (1286, 60776), (1712, 45653), (2572, 30388), (5144, 15194), (7597, 10288)]