7800979220

素因数分解:

$2^2\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{312289}}^1$

素因数の和:313547

約数の個数: 24

約数和(自身を含む): 16395225000

約数和(自身を除く): 8594245780

約数列:

[1, 2, 4, 5, 10, 20, 1249, 2498, 4996, 6245, 12490, 24980, 312289, 624578, 1249156, 1561445, 3122890, 6245780, 390048961, 780097922, 1560195844, 1950244805, 3900489610, 7800979220]

約数ペア:

[(1, 7800979220), (2, 3900489610), (4, 1950244805), (5, 1560195844), (10, 780097922), (20, 390048961), (1249, 6245780), (2498, 3122890), (4996, 1561445), (6245, 1249156), (12490, 624578), (24980, 312289)]