304040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{691}}^1$

素因数の和:713

約数の個数: 32

約数和(自身を含む): 747360

約数和(自身を除く): 443320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 691, 1382, 2764, 3455, 5528, 6910, 7601, 13820, 15202, 27640, 30404, 38005, 60808, 76010, 152020, 304040]

約数ペア:

[(1, 304040), (2, 152020), (4, 76010), (5, 60808), (8, 38005), (10, 30404), (11, 27640), (20, 15202), (22, 13820), (40, 7601), (44, 6910), (55, 5528), (88, 3455), (110, 2764), (220, 1382), (440, 691)]