71409160

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{8971}}^1$

素因数の和:9181

約数の個数: 32

約数和(自身を含む): 161496000

約数和(自身を除く): 90086840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 8971, 17942, 35884, 44855, 71768, 89710, 179420, 358840, 1785229, 3570458, 7140916, 8926145, 14281832, 17852290, 35704580, 71409160]

約数ペア:

[(1, 71409160), (2, 35704580), (4, 17852290), (5, 14281832), (8, 8926145), (10, 7140916), (20, 3570458), (40, 1785229), (199, 358840), (398, 179420), (796, 89710), (995, 71768), (1592, 44855), (1990, 35884), (3980, 17942), (7960, 8971)]