81772000

素因数分解:

$2^5\times 5^3\times {\mathrm{20443}}^1$

素因数の和:20468

約数の個数: 48

約数和(自身を含む): 200923632

約数和(自身を除く): 119151632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 20443, 40886, 81772, 102215, 163544, 204430, 327088, 408860, 511075, 654176, 817720, 1022150, 1635440, 2044300, 2555375, 3270880, 4088600, 5110750, 8177200, 10221500, 16354400, 20443000, 40886000, 81772000]

約数ペア:

[(1, 81772000), (2, 40886000), (4, 20443000), (5, 16354400), (8, 10221500), (10, 8177200), (16, 5110750), (20, 4088600), (25, 3270880), (32, 2555375), (40, 2044300), (50, 1635440), (80, 1022150), (100, 817720), (125, 654176), (160, 511075), (200, 408860), (250, 327088), (400, 204430), (500, 163544), (800, 102215), (1000, 81772), (2000, 40886), (4000, 20443)]