20780452784

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{147137}}^1$

素因数の和:147262

約数の個数: 80

約数和(自身を含む): 50064587328

約数和(自身を除く): 29284134544

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 97, 104, 112, 182, 194, 208, 364, 388, 679, 728, 776, 1261, 1358, 1456, 1552, 2522, 2716, 5044, 5432, 8827, 10088, 10864, 17654, 20176, 35308, 70616, 141232, 147137, 294274, 588548, 1029959, 1177096, 1912781, 2059918, 2354192, 3825562, 4119836, 7651124, 8239672, 13389467, 14272289, 15302248, 16479344, 26778934, 28544578, 30604496, 53557868, 57089156, 99906023, 107115736, 114178312, 185539757, 199812046, 214231472, 228356624, 371079514, 399624092, 742159028, 799248184, 1298778299, 1484318056, 1598496368, 2597556598, 2968636112, 5195113196, 10390226392, 20780452784]

約数ペア:

[(1, 20780452784), (2, 10390226392), (4, 5195113196), (7, 2968636112), (8, 2597556598), (13, 1598496368), (14, 1484318056), (16, 1298778299), (26, 799248184), (28, 742159028), (52, 399624092), (56, 371079514), (91, 228356624), (97, 214231472), (104, 199812046), (112, 185539757), (182, 114178312), (194, 107115736), (208, 99906023), (364, 57089156), (388, 53557868), (679, 30604496), (728, 28544578), (776, 26778934), (1261, 16479344), (1358, 15302248), (1456, 14272289), (1552, 13389467), (2522, 8239672), (2716, 7651124), (5044, 4119836), (5432, 3825562), (8827, 2354192), (10088, 2059918), (10864, 1912781), (17654, 1177096), (20176, 1029959), (35308, 588548), (70616, 294274), (141232, 147137)]