278322885

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29879}}^1$

素因数の和:29919

約数の個数: 40

約数和(自身を含む): 520629120

約数和(自身を除く): 242306235

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 3105, 9315, 29879, 89637, 149395, 268911, 448185, 687217, 806733, 1344555, 2061651, 2420199, 3436085, 4033665, 6184953, 10308255, 12100995, 18554859, 30924765, 55664577, 92774295, 278322885]

約数ペア:

[(1, 278322885), (3, 92774295), (5, 55664577), (9, 30924765), (15, 18554859), (23, 12100995), (27, 10308255), (45, 6184953), (69, 4033665), (81, 3436085), (115, 2420199), (135, 2061651), (207, 1344555), (345, 806733), (405, 687217), (621, 448185), (1035, 268911), (1863, 149395), (3105, 89637), (9315, 29879)]