8809840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:266

約数の個数: 80

約数和(自身を含む): 22686048

約数和(自身を除く): 13876208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 197, 208, 215, 260, 344, 394, 430, 520, 559, 688, 788, 860, 985, 1040, 1118, 1576, 1720, 1970, 2236, 2561, 2795, 3152, 3440, 3940, 4472, 5122, 5590, 7880, 8471, 8944, 10244, 11180, 12805, 15760, 16942, 20488, 22360, 25610, 33884, 40976, 42355, 44720, 51220, 67768, 84710, 102440, 110123, 135536, 169420, 204880, 220246, 338840, 440492, 550615, 677680, 880984, 1101230, 1761968, 2202460, 4404920, 8809840]

約数ペア:

[(1, 8809840), (2, 4404920), (4, 2202460), (5, 1761968), (8, 1101230), (10, 880984), (13, 677680), (16, 550615), (20, 440492), (26, 338840), (40, 220246), (43, 204880), (52, 169420), (65, 135536), (80, 110123), (86, 102440), (104, 84710), (130, 67768), (172, 51220), (197, 44720), (208, 42355), (215, 40976), (260, 33884), (344, 25610), (394, 22360), (430, 20488), (520, 16942), (559, 15760), (688, 12805), (788, 11180), (860, 10244), (985, 8944), (1040, 8471), (1118, 7880), (1576, 5590), (1720, 5122), (1970, 4472), (2236, 3940), (2561, 3440), (2795, 3152)]