678009985

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1\times {\mathrm{283}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 865686528

約数和(自身を除く): 187676543

約数列:

[1, 5, 23, 83, 115, 251, 283, 415, 1255, 1415, 1909, 5773, 6509, 9545, 20833, 23489, 28865, 32545, 71033, 104165, 117445, 355165, 479159, 540247, 1633759, 2395795, 2701235, 5895739, 8168795, 29478695, 135601997, 678009985]

約数ペア:

[(1, 678009985), (5, 135601997), (23, 29478695), (83, 8168795), (115, 5895739), (251, 2701235), (283, 2395795), (415, 1633759), (1255, 540247), (1415, 479159), (1909, 355165), (5773, 117445), (6509, 104165), (9545, 71033), (20833, 32545), (23489, 28865)]