20180750

素因数分解:

$2^1\times 5^3\times {\mathrm{89}}^1\times {\mathrm{907}}^1$

素因数の和:1013

約数の個数: 32

約数和(自身を含む): 38244960

約数和(自身を除く): 18064210

約数列:

[1, 2, 5, 10, 25, 50, 89, 125, 178, 250, 445, 890, 907, 1814, 2225, 4450, 4535, 9070, 11125, 22250, 22675, 45350, 80723, 113375, 161446, 226750, 403615, 807230, 2018075, 4036150, 10090375, 20180750]

約数ペア:

[(1, 20180750), (2, 10090375), (5, 4036150), (10, 2018075), (25, 807230), (50, 403615), (89, 226750), (125, 161446), (178, 113375), (250, 80723), (445, 45350), (890, 22675), (907, 22250), (1814, 11125), (2225, 9070), (4450, 4535)]