19741000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1039}}^1$

素因数の和:1079

約数の個数: 64

約数和(自身を含む): 48672000

約数和(自身を除く): 28931000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 760, 950, 1000, 1039, 1900, 2078, 2375, 3800, 4156, 4750, 5195, 8312, 9500, 10390, 19000, 19741, 20780, 25975, 39482, 41560, 51950, 78964, 98705, 103900, 129875, 157928, 197410, 207800, 259750, 394820, 493525, 519500, 789640, 987050, 1039000, 1974100, 2467625, 3948200, 4935250, 9870500, 19741000]

約数ペア:

[(1, 19741000), (2, 9870500), (4, 4935250), (5, 3948200), (8, 2467625), (10, 1974100), (19, 1039000), (20, 987050), (25, 789640), (38, 519500), (40, 493525), (50, 394820), (76, 259750), (95, 207800), (100, 197410), (125, 157928), (152, 129875), (190, 103900), (200, 98705), (250, 78964), (380, 51950), (475, 41560), (500, 39482), (760, 25975), (950, 20780), (1000, 19741), (1039, 19000), (1900, 10390), (2078, 9500), (2375, 8312), (3800, 5195), (4156, 4750)]