20353600

素因数分解:

$2^6\times 5^2\times {\mathrm{12721}}^1$

素因数の和:12743

約数の個数: 42

約数和(自身を含む): 50086514

約数和(自身を除く): 29732914

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 12721, 25442, 50884, 63605, 101768, 127210, 203536, 254420, 318025, 407072, 508840, 636050, 814144, 1017680, 1272100, 2035360, 2544200, 4070720, 5088400, 10176800, 20353600]

約数ペア:

[(1, 20353600), (2, 10176800), (4, 5088400), (5, 4070720), (8, 2544200), (10, 2035360), (16, 1272100), (20, 1017680), (25, 814144), (32, 636050), (40, 508840), (50, 407072), (64, 318025), (80, 254420), (100, 203536), (160, 127210), (200, 101768), (320, 63605), (400, 50884), (800, 25442), (1600, 12721)]