15697217720

素因数分解:

$2^3\times 5^1\times {\mathrm{2903}}^1\times {\mathrm{135181}}^1$

素因数の和:138095

約数の個数: 32

約数和(自身を含む): 35331167520

約数和(自身を除く): 19633949800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2903, 5806, 11612, 14515, 23224, 29030, 58060, 116120, 135181, 270362, 540724, 675905, 1081448, 1351810, 2703620, 5407240, 392430443, 784860886, 1569721772, 1962152215, 3139443544, 3924304430, 7848608860, 15697217720]

約数ペア:

[(1, 15697217720), (2, 7848608860), (4, 3924304430), (5, 3139443544), (8, 1962152215), (10, 1569721772), (20, 784860886), (40, 392430443), (2903, 5407240), (5806, 2703620), (11612, 1351810), (14515, 1081448), (23224, 675905), (29030, 540724), (58060, 270362), (116120, 135181)]