131305160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{20389}}^1$

素因数の和:20430

約数の個数: 64

約数和(自身を含む): 352339200

約数和(自身を除く): 221034040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 20389, 40778, 81556, 101945, 142723, 163112, 203890, 285446, 407780, 468947, 570892, 713615, 815560, 937894, 1141784, 1427230, 1875788, 2344735, 2854460, 3282629, 3751576, 4689470, 5708920, 6565258, 9378940, 13130516, 16413145, 18757880, 26261032, 32826290, 65652580, 131305160]

約数ペア:

[(1, 131305160), (2, 65652580), (4, 32826290), (5, 26261032), (7, 18757880), (8, 16413145), (10, 13130516), (14, 9378940), (20, 6565258), (23, 5708920), (28, 4689470), (35, 3751576), (40, 3282629), (46, 2854460), (56, 2344735), (70, 1875788), (92, 1427230), (115, 1141784), (140, 937894), (161, 815560), (184, 713615), (230, 570892), (280, 468947), (322, 407780), (460, 285446), (644, 203890), (805, 163112), (920, 142723), (1288, 101945), (1610, 81556), (3220, 40778), (6440, 20389)]