51007780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{499}}^1$

素因数の和:796

約数の個数: 48

約数和(自身を含む): 113400000

約数和(自身を除く): 62392220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 269, 380, 499, 538, 998, 1076, 1345, 1996, 2495, 2690, 4990, 5111, 5380, 9481, 9980, 10222, 18962, 20444, 25555, 37924, 47405, 51110, 94810, 102220, 134231, 189620, 268462, 536924, 671155, 1342310, 2550389, 2684620, 5100778, 10201556, 12751945, 25503890, 51007780]

約数ペア:

[(1, 51007780), (2, 25503890), (4, 12751945), (5, 10201556), (10, 5100778), (19, 2684620), (20, 2550389), (38, 1342310), (76, 671155), (95, 536924), (190, 268462), (269, 189620), (380, 134231), (499, 102220), (538, 94810), (998, 51110), (1076, 47405), (1345, 37924), (1996, 25555), (2495, 20444), (2690, 18962), (4990, 10222), (5111, 9980), (5380, 9481)]