28041255

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{821}}^1$

素因数の和:869

約数の個数: 64

約数和(自身を含む): 56816640

約数和(自身を除く): 28775385

約数列:

[1, 3, 5, 9, 11, 15, 23, 27, 33, 45, 55, 69, 99, 115, 135, 165, 207, 253, 297, 345, 495, 621, 759, 821, 1035, 1265, 1485, 2277, 2463, 3105, 3795, 4105, 6831, 7389, 9031, 11385, 12315, 18883, 22167, 27093, 34155, 36945, 45155, 56649, 81279, 94415, 110835, 135465, 169947, 207713, 243837, 283245, 406395, 509841, 623139, 849735, 1038565, 1219185, 1869417, 2549205, 3115695, 5608251, 9347085, 28041255]

約数ペア:

[(1, 28041255), (3, 9347085), (5, 5608251), (9, 3115695), (11, 2549205), (15, 1869417), (23, 1219185), (27, 1038565), (33, 849735), (45, 623139), (55, 509841), (69, 406395), (99, 283245), (115, 243837), (135, 207713), (165, 169947), (207, 135465), (253, 110835), (297, 94415), (345, 81279), (495, 56649), (621, 45155), (759, 36945), (821, 34155), (1035, 27093), (1265, 22167), (1485, 18883), (2277, 12315), (2463, 11385), (3105, 9031), (3795, 7389), (4105, 6831)]