205807719

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{997}}^1$

素因数の和:1159

約数の個数: 32

約数和(自身を含む): 304030720

約数和(自身を除く): 98223001

約数列:

[1, 3, 13, 39, 67, 79, 201, 237, 871, 997, 1027, 2613, 2991, 3081, 5293, 12961, 15879, 38883, 66799, 68809, 78763, 200397, 206427, 236289, 868387, 1023919, 2605161, 3071757, 5277121, 15831363, 68602573, 205807719]

約数ペア:

[(1, 205807719), (3, 68602573), (13, 15831363), (39, 5277121), (67, 3071757), (79, 2605161), (201, 1023919), (237, 868387), (871, 236289), (997, 206427), (1027, 200397), (2613, 78763), (2991, 68809), (3081, 66799), (5293, 38883), (12961, 15879)]