20829690

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:233

約数の個数: 128

約数和(自身を含む): 64696320

約数和(自身を除く): 43866630

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 103, 105, 107, 126, 135, 189, 206, 210, 214, 270, 309, 315, 321, 378, 515, 535, 618, 630, 642, 721, 749, 927, 945, 963, 1030, 1070, 1442, 1498, 1545, 1605, 1854, 1890, 1926, 2163, 2247, 2781, 2889, 3090, 3210, 3605, 3745, 4326, 4494, 4635, 4815, 5562, 5778, 6489, 6741, 7210, 7490, 9270, 9630, 10815, 11021, 11235, 12978, 13482, 13905, 14445, 19467, 20223, 21630, 22042, 22470, 27810, 28890, 32445, 33063, 33705, 38934, 40446, 55105, 64890, 66126, 67410, 77147, 97335, 99189, 101115, 110210, 154294, 165315, 194670, 198378, 202230, 231441, 297567, 330630, 385735, 462882, 495945, 595134, 694323, 771470, 991890, 1157205, 1388646, 1487835, 2082969, 2314410, 2975670, 3471615, 4165938, 6943230, 10414845, 20829690]

約数ペア:

[(1, 20829690), (2, 10414845), (3, 6943230), (5, 4165938), (6, 3471615), (7, 2975670), (9, 2314410), (10, 2082969), (14, 1487835), (15, 1388646), (18, 1157205), (21, 991890), (27, 771470), (30, 694323), (35, 595134), (42, 495945), (45, 462882), (54, 385735), (63, 330630), (70, 297567), (90, 231441), (103, 202230), (105, 198378), (107, 194670), (126, 165315), (135, 154294), (189, 110210), (206, 101115), (210, 99189), (214, 97335), (270, 77147), (309, 67410), (315, 66126), (321, 64890), (378, 55105), (515, 40446), (535, 38934), (618, 33705), (630, 33063), (642, 32445), (721, 28890), (749, 27810), (927, 22470), (945, 22042), (963, 21630), (1030, 20223), (1070, 19467), (1442, 14445), (1498, 13905), (1545, 13482), (1605, 12978), (1854, 11235), (1890, 11021), (1926, 10815), (2163, 9630), (2247, 9270), (2781, 7490), (2889, 7210), (3090, 6741), (3210, 6489), (3605, 5778), (3745, 5562), (4326, 4815), (4494, 4635)]