38438840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{439}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 95040000

約数和(自身を除く): 56601160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 199, 220, 398, 439, 440, 796, 878, 995, 1592, 1756, 1990, 2189, 2195, 3512, 3980, 4378, 4390, 4829, 7960, 8756, 8780, 9658, 10945, 17512, 17560, 19316, 21890, 24145, 38632, 43780, 48290, 87361, 87560, 96580, 174722, 193160, 349444, 436805, 698888, 873610, 960971, 1747220, 1921942, 3494440, 3843884, 4804855, 7687768, 9609710, 19219420, 38438840]

約数ペア:

[(1, 38438840), (2, 19219420), (4, 9609710), (5, 7687768), (8, 4804855), (10, 3843884), (11, 3494440), (20, 1921942), (22, 1747220), (40, 960971), (44, 873610), (55, 698888), (88, 436805), (110, 349444), (199, 193160), (220, 174722), (398, 96580), (439, 87560), (440, 87361), (796, 48290), (878, 43780), (995, 38632), (1592, 24145), (1756, 21890), (1990, 19316), (2189, 17560), (2195, 17512), (3512, 10945), (3980, 9658), (4378, 8780), (4390, 8756), (4829, 7960)]