20309588

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 40567296

約数和(自身を除く): 20257708

約数列:

[1, 2, 4, 13, 26, 31, 43, 52, 62, 86, 124, 172, 293, 403, 559, 586, 806, 1118, 1172, 1333, 1612, 2236, 2666, 3809, 5332, 7618, 9083, 12599, 15236, 17329, 18166, 25198, 34658, 36332, 50396, 69316, 118079, 163787, 236158, 327574, 390569, 472316, 655148, 781138, 1562276, 5077397, 10154794, 20309588]

約数ペア:

[(1, 20309588), (2, 10154794), (4, 5077397), (13, 1562276), (26, 781138), (31, 655148), (43, 472316), (52, 390569), (62, 327574), (86, 236158), (124, 163787), (172, 118079), (293, 69316), (403, 50396), (559, 36332), (586, 34658), (806, 25198), (1118, 18166), (1172, 17329), (1333, 15236), (1612, 12599), (2236, 9083), (2666, 7618), (3809, 5332)]