221507440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{467}}^1$

素因数の和:516

約数の個数: 180

約数和(自身を含む): 659910888

約数和(自身を除く): 438403448

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 121, 140, 154, 176, 196, 220, 242, 245, 280, 308, 385, 392, 440, 467, 484, 490, 539, 560, 605, 616, 770, 784, 847, 880, 934, 968, 980, 1078, 1210, 1232, 1540, 1694, 1868, 1936, 1960, 2156, 2335, 2420, 2695, 3080, 3269, 3388, 3736, 3920, 4235, 4312, 4670, 4840, 5137, 5390, 5929, 6160, 6538, 6776, 7472, 8470, 8624, 9340, 9680, 10274, 10780, 11858, 13076, 13552, 16345, 16940, 18680, 20548, 21560, 22883, 23716, 25685, 26152, 29645, 32690, 33880, 35959, 37360, 41096, 43120, 45766, 47432, 51370, 52304, 56507, 59290, 65380, 67760, 71918, 82192, 91532, 94864, 102740, 113014, 114415, 118580, 130760, 143836, 179795, 183064, 205480, 226028, 228830, 237160, 251713, 261520, 282535, 287672, 359590, 366128, 395549, 410960, 452056, 457660, 474320, 503426, 565070, 575344, 719180, 791098, 904112, 915320, 1006852, 1130140, 1258565, 1438360, 1582196, 1830640, 1977745, 2013704, 2260280, 2517130, 2768843, 2876720, 3164392, 3955490, 4027408, 4520560, 5034260, 5537686, 6328784, 7910980, 10068520, 11075372, 13844215, 15821960, 20137040, 22150744, 27688430, 31643920, 44301488, 55376860, 110753720, 221507440]

約数ペア:

[(1, 221507440), (2, 110753720), (4, 55376860), (5, 44301488), (7, 31643920), (8, 27688430), (10, 22150744), (11, 20137040), (14, 15821960), (16, 13844215), (20, 11075372), (22, 10068520), (28, 7910980), (35, 6328784), (40, 5537686), (44, 5034260), (49, 4520560), (55, 4027408), (56, 3955490), (70, 3164392), (77, 2876720), (80, 2768843), (88, 2517130), (98, 2260280), (110, 2013704), (112, 1977745), (121, 1830640), (140, 1582196), (154, 1438360), (176, 1258565), (196, 1130140), (220, 1006852), (242, 915320), (245, 904112), (280, 791098), (308, 719180), (385, 575344), (392, 565070), (440, 503426), (467, 474320), (484, 457660), (490, 452056), (539, 410960), (560, 395549), (605, 366128), (616, 359590), (770, 287672), (784, 282535), (847, 261520), (880, 251713), (934, 237160), (968, 228830), (980, 226028), (1078, 205480), (1210, 183064), (1232, 179795), (1540, 143836), (1694, 130760), (1868, 118580), (1936, 114415), (1960, 113014), (2156, 102740), (2335, 94864), (2420, 91532), (2695, 82192), (3080, 71918), (3269, 67760), (3388, 65380), (3736, 59290), (3920, 56507), (4235, 52304), (4312, 51370), (4670, 47432), (4840, 45766), (5137, 43120), (5390, 41096), (5929, 37360), (6160, 35959), (6538, 33880), (6776, 32690), (7472, 29645), (8470, 26152), (8624, 25685), (9340, 23716), (9680, 22883), (10274, 21560), (10780, 20548), (11858, 18680), (13076, 16940), (13552, 16345)]