81051580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{1069}}^1$

素因数の和:1318

約数の個数: 48

約数和(自身を含む): 181198080

約数和(自身を除く): 100146500

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 223, 340, 446, 892, 1069, 1115, 2138, 2230, 3791, 4276, 4460, 5345, 7582, 10690, 15164, 18173, 18955, 21380, 36346, 37910, 72692, 75820, 90865, 181730, 238387, 363460, 476774, 953548, 1191935, 2383870, 4052579, 4767740, 8105158, 16210316, 20262895, 40525790, 81051580]

約数ペア:

[(1, 81051580), (2, 40525790), (4, 20262895), (5, 16210316), (10, 8105158), (17, 4767740), (20, 4052579), (34, 2383870), (68, 1191935), (85, 953548), (170, 476774), (223, 363460), (340, 238387), (446, 181730), (892, 90865), (1069, 75820), (1115, 72692), (2138, 37910), (2230, 36346), (3791, 21380), (4276, 18955), (4460, 18173), (5345, 15164), (7582, 10690)]