87808760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{168863}}^1$

素因数の和:168887

約数の個数: 32

約数和(自身を含む): 212768640

約数和(自身を除く): 124959880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 168863, 337726, 675452, 844315, 1350904, 1688630, 2195219, 3377260, 4390438, 6754520, 8780876, 10976095, 17561752, 21952190, 43904380, 87808760]

約数ペア:

[(1, 87808760), (2, 43904380), (4, 21952190), (5, 17561752), (8, 10976095), (10, 8780876), (13, 6754520), (20, 4390438), (26, 3377260), (40, 2195219), (52, 1688630), (65, 1350904), (104, 844315), (130, 675452), (260, 337726), (520, 168863)]