28173165

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 49100352

約数和(自身を除く): 20927187

約数列:

[1, 3, 5, 15, 17, 51, 67, 85, 97, 201, 255, 289, 291, 335, 485, 867, 1005, 1139, 1445, 1455, 1649, 3417, 4335, 4947, 5695, 6499, 8245, 17085, 19363, 19497, 24735, 28033, 32495, 58089, 84099, 96815, 97485, 110483, 140165, 290445, 331449, 420495, 552415, 1657245, 1878211, 5634633, 9391055, 28173165]

約数ペア:

[(1, 28173165), (3, 9391055), (5, 5634633), (15, 1878211), (17, 1657245), (51, 552415), (67, 420495), (85, 331449), (97, 290445), (201, 140165), (255, 110483), (289, 97485), (291, 96815), (335, 84099), (485, 58089), (867, 32495), (1005, 28033), (1139, 24735), (1445, 19497), (1455, 19363), (1649, 17085), (3417, 8245), (4335, 6499), (4947, 5695)]