40905520

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4691}}^1$

素因数の和:4813

約数の個数: 40

約数和(自身を含む): 95998320

約数和(自身を除く): 55092800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 4691, 8720, 9382, 18764, 23455, 37528, 46910, 75056, 93820, 187640, 375280, 511319, 1022638, 2045276, 2556595, 4090552, 5113190, 8181104, 10226380, 20452760, 40905520]

約数ペア:

[(1, 40905520), (2, 20452760), (4, 10226380), (5, 8181104), (8, 5113190), (10, 4090552), (16, 2556595), (20, 2045276), (40, 1022638), (80, 511319), (109, 375280), (218, 187640), (436, 93820), (545, 75056), (872, 46910), (1090, 37528), (1744, 23455), (2180, 18764), (4360, 9382), (4691, 8720)]