28390245

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:182

約数の個数: 64

約数和(自身を含む): 51819264

約数和(自身を除く): 23429019

約数列:

[1, 3, 5, 13, 15, 39, 41, 53, 65, 67, 123, 159, 195, 201, 205, 265, 335, 533, 615, 689, 795, 871, 1005, 1599, 2067, 2173, 2613, 2665, 2747, 3445, 3551, 4355, 6519, 7995, 8241, 10335, 10653, 10865, 13065, 13735, 17755, 28249, 32595, 35711, 41205, 46163, 53265, 84747, 107133, 138489, 141245, 145591, 178555, 230815, 423735, 436773, 535665, 692445, 727955, 1892683, 2183865, 5678049, 9463415, 28390245]

約数ペア:

[(1, 28390245), (3, 9463415), (5, 5678049), (13, 2183865), (15, 1892683), (39, 727955), (41, 692445), (53, 535665), (65, 436773), (67, 423735), (123, 230815), (159, 178555), (195, 145591), (201, 141245), (205, 138489), (265, 107133), (335, 84747), (533, 53265), (615, 46163), (689, 41205), (795, 35711), (871, 32595), (1005, 28249), (1599, 17755), (2067, 13735), (2173, 13065), (2613, 10865), (2665, 10653), (2747, 10335), (3445, 8241), (3551, 7995), (4355, 6519)]