64130480

素因数分解:

$2^4\times 5^1\times {\mathrm{801631}}^1$

素因数の和:801644

約数の個数: 20

約数和(自身を含む): 149103552

約数和(自身を除く): 84973072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 801631, 1603262, 3206524, 4008155, 6413048, 8016310, 12826096, 16032620, 32065240, 64130480]

約数ペア:

[(1, 64130480), (2, 32065240), (4, 16032620), (5, 12826096), (8, 8016310), (10, 6413048), (16, 4008155), (20, 3206524), (40, 1603262), (80, 801631)]