80578025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{3709}}^1$

素因数の和:3809

約数の個数: 24

約数和(自身を含む): 110409600

約数和(自身を除く): 29831575

約数列:

[1, 5, 11, 25, 55, 79, 275, 395, 869, 1975, 3709, 4345, 18545, 21725, 40799, 92725, 203995, 293011, 1019975, 1465055, 3223121, 7325275, 16115605, 80578025]

約数ペア:

[(1, 80578025), (5, 16115605), (11, 7325275), (25, 3223121), (55, 1465055), (79, 1019975), (275, 293011), (395, 203995), (869, 92725), (1975, 40799), (3709, 21725), (4345, 18545)]