28908440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65701}}^1$

素因数の和:65723

約数の個数: 32

約数和(自身を含む): 70958160

約数和(自身を除く): 42049720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65701, 131402, 262804, 328505, 525608, 657010, 722711, 1314020, 1445422, 2628040, 2890844, 3613555, 5781688, 7227110, 14454220, 28908440]

約数ペア:

[(1, 28908440), (2, 14454220), (4, 7227110), (5, 5781688), (8, 3613555), (10, 2890844), (11, 2628040), (20, 1445422), (22, 1314020), (40, 722711), (44, 657010), (55, 525608), (88, 328505), (110, 262804), (220, 131402), (440, 65701)]