25394000

素因数分解:

$2^4\times 5^3\times {\mathrm{12697}}^1$

素因数の和:12720

約数の個数: 40

約数和(自身を含む): 61407528

約数和(自身を除く): 36013528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 12697, 25394, 50788, 63485, 101576, 126970, 203152, 253940, 317425, 507880, 634850, 1015760, 1269700, 1587125, 2539400, 3174250, 5078800, 6348500, 12697000, 25394000]

約数ペア:

[(1, 25394000), (2, 12697000), (4, 6348500), (5, 5078800), (8, 3174250), (10, 2539400), (16, 1587125), (20, 1269700), (25, 1015760), (40, 634850), (50, 507880), (80, 317425), (100, 253940), (125, 203152), (200, 126970), (250, 101576), (400, 63485), (500, 50788), (1000, 25394), (2000, 12697)]