2078552920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1208461}}^1$

素因数の和:1208515

約数の個数: 32

約数和(自身を含む): 4785509520

約数和(自身を除く): 2706956600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1208461, 2416922, 4833844, 6042305, 9667688, 12084610, 24169220, 48338440, 51963823, 103927646, 207855292, 259819115, 415710584, 519638230, 1039276460, 2078552920]

約数ペア:

[(1, 2078552920), (2, 1039276460), (4, 519638230), (5, 415710584), (8, 259819115), (10, 207855292), (20, 103927646), (40, 51963823), (43, 48338440), (86, 24169220), (172, 12084610), (215, 9667688), (344, 6042305), (430, 4833844), (860, 2416922), (1720, 1208461)]