19394000

素因数分解:

$2^4\times 5^3\times {\mathrm{9697}}^1$

素因数の和:9720

約数の個数: 40

約数和(自身を含む): 46899528

約数和(自身を除く): 27505528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 9697, 19394, 38788, 48485, 77576, 96970, 155152, 193940, 242425, 387880, 484850, 775760, 969700, 1212125, 1939400, 2424250, 3878800, 4848500, 9697000, 19394000]

約数ペア:

[(1, 19394000), (2, 9697000), (4, 4848500), (5, 3878800), (8, 2424250), (10, 1939400), (16, 1212125), (20, 969700), (25, 775760), (40, 484850), (50, 387880), (80, 242425), (100, 193940), (125, 155152), (200, 96970), (250, 77576), (400, 48485), (500, 38788), (1000, 19394), (2000, 9697)]