81480388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1123}}^1$

素因数の和:1252

約数の個数: 48

約数和(自身を含む): 166549824

約数和(自身を除く): 85069436

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 97, 187, 194, 374, 388, 748, 1067, 1123, 1649, 2134, 2246, 3298, 4268, 4492, 6596, 12353, 18139, 19091, 24706, 36278, 38182, 49412, 72556, 76364, 108931, 210001, 217862, 420002, 435724, 840004, 1198241, 1851827, 2396482, 3703654, 4792964, 7407308, 20370097, 40740194, 81480388]

約数ペア:

[(1, 81480388), (2, 40740194), (4, 20370097), (11, 7407308), (17, 4792964), (22, 3703654), (34, 2396482), (44, 1851827), (68, 1198241), (97, 840004), (187, 435724), (194, 420002), (374, 217862), (388, 210001), (748, 108931), (1067, 76364), (1123, 72556), (1649, 49412), (2134, 38182), (2246, 36278), (3298, 24706), (4268, 19091), (4492, 18139), (6596, 12353)]