19879750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7229}}^1$

素因数の和:7257

約数の個数: 32

約数和(自身を含む): 40603680

約数和(自身を除く): 20723930

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 7229, 14458, 36145, 72290, 79519, 159038, 180725, 361450, 397595, 795190, 903625, 1807250, 1987975, 3975950, 9939875, 19879750]

約数ペア:

[(1, 19879750), (2, 9939875), (5, 3975950), (10, 1987975), (11, 1807250), (22, 903625), (25, 795190), (50, 397595), (55, 361450), (110, 180725), (125, 159038), (250, 79519), (275, 72290), (550, 36145), (1375, 14458), (2750, 7229)]