39875000

素因数分解:

$2^3\times 5^6\times {\mathrm{11}}^1\times {\mathrm{29}}^1$

素因数の和:76

約数の個数: 112

約数和(自身を含む): 105467400

約数和(自身を除く): 65592400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 29, 40, 44, 50, 55, 58, 88, 100, 110, 116, 125, 145, 200, 220, 232, 250, 275, 290, 319, 440, 500, 550, 580, 625, 638, 725, 1000, 1100, 1160, 1250, 1276, 1375, 1450, 1595, 2200, 2500, 2552, 2750, 2900, 3125, 3190, 3625, 5000, 5500, 5800, 6250, 6380, 6875, 7250, 7975, 11000, 12500, 12760, 13750, 14500, 15625, 15950, 18125, 25000, 27500, 29000, 31250, 31900, 34375, 36250, 39875, 55000, 62500, 63800, 68750, 72500, 79750, 90625, 125000, 137500, 145000, 159500, 171875, 181250, 199375, 275000, 319000, 343750, 362500, 398750, 453125, 687500, 725000, 797500, 906250, 996875, 1375000, 1595000, 1812500, 1993750, 3625000, 3987500, 4984375, 7975000, 9968750, 19937500, 39875000]

約数ペア:

[(1, 39875000), (2, 19937500), (4, 9968750), (5, 7975000), (8, 4984375), (10, 3987500), (11, 3625000), (20, 1993750), (22, 1812500), (25, 1595000), (29, 1375000), (40, 996875), (44, 906250), (50, 797500), (55, 725000), (58, 687500), (88, 453125), (100, 398750), (110, 362500), (116, 343750), (125, 319000), (145, 275000), (200, 199375), (220, 181250), (232, 171875), (250, 159500), (275, 145000), (290, 137500), (319, 125000), (440, 90625), (500, 79750), (550, 72500), (580, 68750), (625, 63800), (638, 62500), (725, 55000), (1000, 39875), (1100, 36250), (1160, 34375), (1250, 31900), (1276, 31250), (1375, 29000), (1450, 27500), (1595, 25000), (2200, 18125), (2500, 15950), (2552, 15625), (2750, 14500), (2900, 13750), (3125, 12760), (3190, 12500), (3625, 11000), (5000, 7975), (5500, 7250), (5800, 6875), (6250, 6380)]