3946000

素因数分解:

$2^4\times 5^3\times {\mathrm{1973}}^1$

素因数の和:1996

約数の個数: 40

約数和(自身を含む): 9546264

約数和(自身を除く): 5600264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 1973, 2000, 3946, 7892, 9865, 15784, 19730, 31568, 39460, 49325, 78920, 98650, 157840, 197300, 246625, 394600, 493250, 789200, 986500, 1973000, 3946000]

約数ペア:

[(1, 3946000), (2, 1973000), (4, 986500), (5, 789200), (8, 493250), (10, 394600), (16, 246625), (20, 197300), (25, 157840), (40, 98650), (50, 78920), (80, 49325), (100, 39460), (125, 31568), (200, 19730), (250, 15784), (400, 9865), (500, 7892), (1000, 3946), (1973, 2000)]