640074071

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{370199}}^1$

素因数の和:370238

約数の個数: 16

約数和(自身を含む): 829248000

約数和(自身を除く): 189173929

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 370199, 2591393, 4812587, 7033781, 33688109, 49236467, 91439153, 640074071]

約数ペア:

[(1, 640074071), (7, 91439153), (13, 49236467), (19, 33688109), (91, 7033781), (133, 4812587), (247, 2591393), (1729, 370199)]