278839160

素因数分解:

$2^3\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{6841}}^1$

素因数の和:7871

約数の個数: 32

約数和(自身を含む): 628095600

約数和(自身を除く): 349256440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1019, 2038, 4076, 5095, 6841, 8152, 10190, 13682, 20380, 27364, 34205, 40760, 54728, 68410, 136820, 273640, 6970979, 13941958, 27883916, 34854895, 55767832, 69709790, 139419580, 278839160]

約数ペア:

[(1, 278839160), (2, 139419580), (4, 69709790), (5, 55767832), (8, 34854895), (10, 27883916), (20, 13941958), (40, 6970979), (1019, 273640), (2038, 136820), (4076, 68410), (5095, 54728), (6841, 40760), (8152, 34205), (10190, 27364), (13682, 20380)]