198130000

素因数分解:

$2^4\times 5^4\times {\mathrm{19813}}^1$

素因数の和:19841

約数の個数: 50

約数和(自身を含む): 479716754

約数和(自身を除く): 281586754

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, 19813, 39626, 79252, 99065, 158504, 198130, 317008, 396260, 495325, 792520, 990650, 1585040, 1981300, 2476625, 3962600, 4953250, 7925200, 9906500, 12383125, 19813000, 24766250, 39626000, 49532500, 99065000, 198130000]

約数ペア:

[(1, 198130000), (2, 99065000), (4, 49532500), (5, 39626000), (8, 24766250), (10, 19813000), (16, 12383125), (20, 9906500), (25, 7925200), (40, 4953250), (50, 3962600), (80, 2476625), (100, 1981300), (125, 1585040), (200, 990650), (250, 792520), (400, 495325), (500, 396260), (625, 317008), (1000, 198130), (1250, 158504), (2000, 99065), (2500, 79252), (5000, 39626), (10000, 19813)]