20012784

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1307}}^1$

素因数の和:1358

約数の個数: 80

約数和(自身を含む): 58389120

約数和(自身を除く): 38376336

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 29, 33, 44, 48, 58, 66, 87, 88, 116, 132, 174, 176, 232, 264, 319, 348, 464, 528, 638, 696, 957, 1276, 1307, 1392, 1914, 2552, 2614, 3828, 3921, 5104, 5228, 7656, 7842, 10456, 14377, 15312, 15684, 20912, 28754, 31368, 37903, 43131, 57508, 62736, 75806, 86262, 113709, 115016, 151612, 172524, 227418, 230032, 303224, 345048, 416933, 454836, 606448, 690096, 833866, 909672, 1250799, 1667732, 1819344, 2501598, 3335464, 5003196, 6670928, 10006392, 20012784]

約数ペア:

[(1, 20012784), (2, 10006392), (3, 6670928), (4, 5003196), (6, 3335464), (8, 2501598), (11, 1819344), (12, 1667732), (16, 1250799), (22, 909672), (24, 833866), (29, 690096), (33, 606448), (44, 454836), (48, 416933), (58, 345048), (66, 303224), (87, 230032), (88, 227418), (116, 172524), (132, 151612), (174, 115016), (176, 113709), (232, 86262), (264, 75806), (319, 62736), (348, 57508), (464, 43131), (528, 37903), (638, 31368), (696, 28754), (957, 20912), (1276, 15684), (1307, 15312), (1392, 14377), (1914, 10456), (2552, 7842), (2614, 7656), (3828, 5228), (3921, 5104)]