28240280

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{3083}}^1$

素因数の和:3323

約数の個数: 32

約数和(自身を含む): 63838800

約数和(自身を除く): 35598520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2290, 3083, 4580, 6166, 9160, 12332, 15415, 24664, 30830, 61660, 123320, 706007, 1412014, 2824028, 3530035, 5648056, 7060070, 14120140, 28240280]

約数ペア:

[(1, 28240280), (2, 14120140), (4, 7060070), (5, 5648056), (8, 3530035), (10, 2824028), (20, 1412014), (40, 706007), (229, 123320), (458, 61660), (916, 30830), (1145, 24664), (1832, 15415), (2290, 12332), (3083, 9160), (4580, 6166)]