131538978

素因数分解:

$2^1\times 3^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:901

約数の個数: 80

約数和(自身を含む): 315095616

約数和(自身を除く): 183556638

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 43, 46, 54, 69, 81, 86, 129, 138, 162, 207, 258, 387, 414, 621, 774, 821, 989, 1161, 1242, 1642, 1863, 1978, 2322, 2463, 2967, 3483, 3726, 4926, 5934, 6966, 7389, 8901, 14778, 17802, 18883, 22167, 26703, 35303, 37766, 44334, 53406, 56649, 66501, 70606, 80109, 105909, 113298, 133002, 160218, 169947, 211818, 317727, 339894, 509841, 635454, 811969, 953181, 1019682, 1529523, 1623938, 1906362, 2435907, 2859543, 3059046, 4871814, 5719086, 7307721, 14615442, 21923163, 43846326, 65769489, 131538978]

約数ペア:

[(1, 131538978), (2, 65769489), (3, 43846326), (6, 21923163), (9, 14615442), (18, 7307721), (23, 5719086), (27, 4871814), (43, 3059046), (46, 2859543), (54, 2435907), (69, 1906362), (81, 1623938), (86, 1529523), (129, 1019682), (138, 953181), (162, 811969), (207, 635454), (258, 509841), (387, 339894), (414, 317727), (621, 211818), (774, 169947), (821, 160218), (989, 133002), (1161, 113298), (1242, 105909), (1642, 80109), (1863, 70606), (1978, 66501), (2322, 56649), (2463, 53406), (2967, 44334), (3483, 37766), (3726, 35303), (4926, 26703), (5934, 22167), (6966, 18883), (7389, 17802), (8901, 14778)]