9725000

素因数分解:

$2^3\times 5^5\times {\mathrm{389}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 22850100

約数和(自身を除く): 13125100

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 389, 500, 625, 778, 1000, 1250, 1556, 1945, 2500, 3112, 3125, 3890, 5000, 6250, 7780, 9725, 12500, 15560, 19450, 25000, 38900, 48625, 77800, 97250, 194500, 243125, 389000, 486250, 972500, 1215625, 1945000, 2431250, 4862500, 9725000]

約数ペア:

[(1, 9725000), (2, 4862500), (4, 2431250), (5, 1945000), (8, 1215625), (10, 972500), (20, 486250), (25, 389000), (40, 243125), (50, 194500), (100, 97250), (125, 77800), (200, 48625), (250, 38900), (389, 25000), (500, 19450), (625, 15560), (778, 12500), (1000, 9725), (1250, 7780), (1556, 6250), (1945, 5000), (2500, 3890), (3112, 3125)]