205120825

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{90163}}^1$

素因数の和:90193

約数の個数: 24

約数和(自身を含む): 313049408

約数和(自身を除く): 107928583

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 90163, 450815, 631141, 1172119, 2254075, 3155705, 5860595, 8204833, 15778525, 29302975, 41024165, 205120825]

約数ペア:

[(1, 205120825), (5, 41024165), (7, 29302975), (13, 15778525), (25, 8204833), (35, 5860595), (65, 3155705), (91, 2254075), (175, 1172119), (325, 631141), (455, 450815), (2275, 90163)]