198190000

素因数分解:

$2^4\times 5^4\times {\mathrm{19819}}^1$

素因数の和:19847

約数の個数: 50

約数和(自身を含む): 479862020

約数和(自身を除く): 281672020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000, 19819, 39638, 79276, 99095, 158552, 198190, 317104, 396380, 495475, 792760, 990950, 1585520, 1981900, 2477375, 3963800, 4954750, 7927600, 9909500, 12386875, 19819000, 24773750, 39638000, 49547500, 99095000, 198190000]

約数ペア:

[(1, 198190000), (2, 99095000), (4, 49547500), (5, 39638000), (8, 24773750), (10, 19819000), (16, 12386875), (20, 9909500), (25, 7927600), (40, 4954750), (50, 3963800), (80, 2477375), (100, 1981900), (125, 1585520), (200, 990950), (250, 792760), (400, 495475), (500, 396380), (625, 317104), (1000, 198190), (1250, 158552), (2000, 99095), (2500, 79276), (5000, 39638), (10000, 19819)]