647440078

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{73091}}^1$

素因数の和:73239

約数の個数: 16

約数和(自身を含む): 1003406976

約数和(自身を除く): 355966898

約数列:

[1, 2, 43, 86, 103, 206, 4429, 8858, 73091, 146182, 3142913, 6285826, 7528373, 15056746, 323720039, 647440078]

約数ペア:

[(1, 647440078), (2, 323720039), (43, 15056746), (86, 7528373), (103, 6285826), (206, 3142913), (4429, 146182), (8858, 73091)]