49925000

素因数分解:

$2^3\times 5^5\times {\mathrm{1997}}^1$

素因数の和:2028

約数の個数: 48

約数和(自身を含む): 117062820

約数和(自身を除く): 67137820

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 1997, 2500, 3125, 3994, 5000, 6250, 7988, 9985, 12500, 15976, 19970, 25000, 39940, 49925, 79880, 99850, 199700, 249625, 399400, 499250, 998500, 1248125, 1997000, 2496250, 4992500, 6240625, 9985000, 12481250, 24962500, 49925000]

約数ペア:

[(1, 49925000), (2, 24962500), (4, 12481250), (5, 9985000), (8, 6240625), (10, 4992500), (20, 2496250), (25, 1997000), (40, 1248125), (50, 998500), (100, 499250), (125, 399400), (200, 249625), (250, 199700), (500, 99850), (625, 79880), (1000, 49925), (1250, 39940), (1997, 25000), (2500, 19970), (3125, 15976), (3994, 12500), (5000, 9985), (6250, 7988)]