64691978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{80263}}^1$

素因数の和:80309

約数の個数: 16

約数和(自身を含む): 107874816

約数和(自身を除く): 43182838

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 80263, 160526, 1043419, 2086838, 2488153, 4976306, 32345989, 64691978]

約数ペア:

[(1, 64691978), (2, 32345989), (13, 4976306), (26, 2488153), (31, 2086838), (62, 1043419), (403, 160526), (806, 80263)]