211680

素因数分解:

$2^5\times 3^3\times 5^1\times 7^2$

素因数の和:38

約数の個数: 144

約数和(自身を含む): 861840

約数和(自身を除く): 650160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 160, 168, 180, 189, 196, 210, 216, 224, 240, 245, 252, 270, 280, 288, 294, 315, 336, 360, 378, 392, 420, 432, 441, 480, 490, 504, 540, 560, 588, 630, 672, 720, 735, 756, 784, 840, 864, 882, 945, 980, 1008, 1080, 1120, 1176, 1260, 1323, 1440, 1470, 1512, 1568, 1680, 1764, 1890, 1960, 2016, 2160, 2205, 2352, 2520, 2646, 2940, 3024, 3360, 3528, 3780, 3920, 4320, 4410, 4704, 5040, 5292, 5880, 6048, 6615, 7056, 7560, 7840, 8820, 10080, 10584, 11760, 13230, 14112, 15120, 17640, 21168, 23520, 26460, 30240, 35280, 42336, 52920, 70560, 105840, 211680]

約数ペア:

[(1, 211680), (2, 105840), (3, 70560), (4, 52920), (5, 42336), (6, 35280), (7, 30240), (8, 26460), (9, 23520), (10, 21168), (12, 17640), (14, 15120), (15, 14112), (16, 13230), (18, 11760), (20, 10584), (21, 10080), (24, 8820), (27, 7840), (28, 7560), (30, 7056), (32, 6615), (35, 6048), (36, 5880), (40, 5292), (42, 5040), (45, 4704), (48, 4410), (49, 4320), (54, 3920), (56, 3780), (60, 3528), (63, 3360), (70, 3024), (72, 2940), (80, 2646), (84, 2520), (90, 2352), (96, 2205), (98, 2160), (105, 2016), (108, 1960), (112, 1890), (120, 1764), (126, 1680), (135, 1568), (140, 1512), (144, 1470), (147, 1440), (160, 1323), (168, 1260), (180, 1176), (189, 1120), (196, 1080), (210, 1008), (216, 980), (224, 945), (240, 882), (245, 864), (252, 840), (270, 784), (280, 756), (288, 735), (294, 720), (315, 672), (336, 630), (360, 588), (378, 560), (392, 540), (420, 504), (432, 490), (441, 480)]