49850000

素因数分解:

$2^4\times 5^5\times {\mathrm{997}}^1$

素因数の和:1030

約数の個数: 60

約数和(自身を含む): 120843828

約数和(自身を除く): 70993828

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 997, 1000, 1250, 1994, 2000, 2500, 3125, 3988, 4985, 5000, 6250, 7976, 9970, 10000, 12500, 15952, 19940, 24925, 25000, 39880, 49850, 50000, 79760, 99700, 124625, 199400, 249250, 398800, 498500, 623125, 997000, 1246250, 1994000, 2492500, 3115625, 4985000, 6231250, 9970000, 12462500, 24925000, 49850000]

約数ペア:

[(1, 49850000), (2, 24925000), (4, 12462500), (5, 9970000), (8, 6231250), (10, 4985000), (16, 3115625), (20, 2492500), (25, 1994000), (40, 1246250), (50, 997000), (80, 623125), (100, 498500), (125, 398800), (200, 249250), (250, 199400), (400, 124625), (500, 99700), (625, 79760), (997, 50000), (1000, 49850), (1250, 39880), (1994, 25000), (2000, 24925), (2500, 19940), (3125, 15952), (3988, 12500), (4985, 10000), (5000, 9970), (6250, 7976)]