81789210

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:309

約数の個数: 128

約数和(自身を含む): 234524160

約数和(自身を除く): 152734950

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 85, 90, 102, 103, 135, 153, 170, 173, 206, 255, 270, 306, 309, 346, 459, 510, 515, 519, 618, 765, 865, 918, 927, 1030, 1038, 1530, 1545, 1557, 1730, 1751, 1854, 2295, 2595, 2781, 2941, 3090, 3114, 3502, 4590, 4635, 4671, 5190, 5253, 5562, 5882, 7785, 8755, 8823, 9270, 9342, 10506, 13905, 14705, 15570, 15759, 17510, 17646, 17819, 23355, 26265, 26469, 27810, 29410, 31518, 35638, 44115, 46710, 47277, 52530, 52938, 53457, 78795, 79407, 88230, 89095, 94554, 106914, 132345, 157590, 158814, 160371, 178190, 236385, 264690, 267285, 302923, 320742, 397035, 472770, 481113, 534570, 605846, 794070, 801855, 908769, 962226, 1514615, 1603710, 1817538, 2405565, 2726307, 3029230, 4543845, 4811130, 5452614, 8178921, 9087690, 13631535, 16357842, 27263070, 40894605, 81789210]

約数ペア:

[(1, 81789210), (2, 40894605), (3, 27263070), (5, 16357842), (6, 13631535), (9, 9087690), (10, 8178921), (15, 5452614), (17, 4811130), (18, 4543845), (27, 3029230), (30, 2726307), (34, 2405565), (45, 1817538), (51, 1603710), (54, 1514615), (85, 962226), (90, 908769), (102, 801855), (103, 794070), (135, 605846), (153, 534570), (170, 481113), (173, 472770), (206, 397035), (255, 320742), (270, 302923), (306, 267285), (309, 264690), (346, 236385), (459, 178190), (510, 160371), (515, 158814), (519, 157590), (618, 132345), (765, 106914), (865, 94554), (918, 89095), (927, 88230), (1030, 79407), (1038, 78795), (1530, 53457), (1545, 52938), (1557, 52530), (1730, 47277), (1751, 46710), (1854, 44115), (2295, 35638), (2595, 31518), (2781, 29410), (2941, 27810), (3090, 26469), (3114, 26265), (3502, 23355), (4590, 17819), (4635, 17646), (4671, 17510), (5190, 15759), (5253, 15570), (5562, 14705), (5882, 13905), (7785, 10506), (8755, 9342), (8823, 9270)]