19734520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37951}}^1$

素因数の和:37975

約数の個数: 32

約数和(自身を含む): 47819520

約数和(自身を除く): 28085000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 37951, 75902, 151804, 189755, 303608, 379510, 493363, 759020, 986726, 1518040, 1973452, 2466815, 3946904, 4933630, 9867260, 19734520]

約数ペア:

[(1, 19734520), (2, 9867260), (4, 4933630), (5, 3946904), (8, 2466815), (10, 1973452), (13, 1518040), (20, 986726), (26, 759020), (40, 493363), (52, 379510), (65, 303608), (104, 189755), (130, 151804), (260, 75902), (520, 37951)]