19846000

素因数分解:

$2^4\times 5^3\times {\mathrm{9923}}^1$

素因数の和:9946

約数の個数: 40

約数和(自身を含む): 47992464

約数和(自身を除く): 28146464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 9923, 19846, 39692, 49615, 79384, 99230, 158768, 198460, 248075, 396920, 496150, 793840, 992300, 1240375, 1984600, 2480750, 3969200, 4961500, 9923000, 19846000]

約数ペア:

[(1, 19846000), (2, 9923000), (4, 4961500), (5, 3969200), (8, 2480750), (10, 1984600), (16, 1240375), (20, 992300), (25, 793840), (40, 496150), (50, 396920), (80, 248075), (100, 198460), (125, 158768), (200, 99230), (250, 79384), (400, 49615), (500, 39692), (1000, 19846), (2000, 9923)]