40742569

素因数分解:

$7^4\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:338

約数の個数: 20

約数和(自身を含む): 48401280

約数和(自身を除く): 7658711

約数列:

[1, 7, 49, 71, 239, 343, 497, 1673, 2401, 3479, 11711, 16969, 24353, 81977, 118783, 170471, 573839, 831481, 5820367, 40742569]

約数ペア:

[(1, 40742569), (7, 5820367), (49, 831481), (71, 573839), (239, 170471), (343, 118783), (497, 81977), (1673, 24353), (2401, 16969), (3479, 11711)]