15784000

素因数分解:

$2^6\times 5^3\times {\mathrm{1973}}^1$

素因数の和:2000

約数の個数: 56

約数和(自身を含む): 39108888

約数和(自身を除く): 23324888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 1000, 1600, 1973, 2000, 3946, 4000, 7892, 8000, 9865, 15784, 19730, 31568, 39460, 49325, 63136, 78920, 98650, 126272, 157840, 197300, 246625, 315680, 394600, 493250, 631360, 789200, 986500, 1578400, 1973000, 3156800, 3946000, 7892000, 15784000]

約数ペア:

[(1, 15784000), (2, 7892000), (4, 3946000), (5, 3156800), (8, 1973000), (10, 1578400), (16, 986500), (20, 789200), (25, 631360), (32, 493250), (40, 394600), (50, 315680), (64, 246625), (80, 197300), (100, 157840), (125, 126272), (160, 98650), (200, 78920), (250, 63136), (320, 49325), (400, 39460), (500, 31568), (800, 19730), (1000, 15784), (1600, 9865), (1973, 8000), (2000, 7892), (3946, 4000)]