640723678

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{863509}}^1$

素因数の和:863571

約数の個数: 16

約数和(自身を含む): 1119108960

約数和(自身を除く): 478385282

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 863509, 1727018, 6044563, 12089126, 45765977, 91531954, 320361839, 640723678]

約数ペア:

[(1, 640723678), (2, 320361839), (7, 91531954), (14, 45765977), (53, 12089126), (106, 6044563), (371, 1727018), (742, 863509)]