66400568

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{638467}}^1$

素因数の和:638486

約数の個数: 16

約数和(自身を含む): 134078280

約数和(自身を除く): 67677712

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 638467, 1276934, 2553868, 5107736, 8300071, 16600142, 33200284, 66400568]

約数ペア:

[(1, 66400568), (2, 33200284), (4, 16600142), (8, 8300071), (13, 5107736), (26, 2553868), (52, 1276934), (104, 638467)]