8478870440

素因数分解:

$2^3\times 5^1\times {\mathrm{211971761}}^1$

素因数の和:211971772

約数の個数: 16

約数和(自身を含む): 19077458580

約数和(自身を除く): 10598588140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211971761, 423943522, 847887044, 1059858805, 1695774088, 2119717610, 4239435220, 8478870440]

約数ペア:

[(1, 8478870440), (2, 4239435220), (4, 2119717610), (5, 1695774088), (8, 1059858805), (10, 847887044), (20, 423943522), (40, 211971761)]