68020360

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{15601}}^1$

素因数の和:15721

約数の個数: 32

約数和(自身を含む): 154459800

約数和(自身を除く): 86439440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 15601, 31202, 62404, 78005, 124808, 156010, 312020, 624040, 1700509, 3401018, 6802036, 8502545, 13604072, 17005090, 34010180, 68020360]

約数ペア:

[(1, 68020360), (2, 34010180), (4, 17005090), (5, 13604072), (8, 8502545), (10, 6802036), (20, 3401018), (40, 1700509), (109, 624040), (218, 312020), (436, 156010), (545, 124808), (872, 78005), (1090, 62404), (2180, 31202), (4360, 15601)]