20630368

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:140

約数の個数: 96

約数和(自身を含む): 47900160

約数和(自身を除く): 27269792

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 32, 43, 44, 47, 58, 86, 88, 94, 116, 172, 176, 188, 232, 319, 344, 352, 376, 464, 473, 517, 638, 688, 752, 928, 946, 1034, 1247, 1276, 1363, 1376, 1504, 1892, 2021, 2068, 2494, 2552, 2726, 3784, 4042, 4136, 4988, 5104, 5452, 7568, 8084, 8272, 9976, 10208, 10904, 13717, 14993, 15136, 16168, 16544, 19952, 21808, 22231, 27434, 29986, 32336, 39904, 43616, 44462, 54868, 58609, 59972, 64672, 88924, 109736, 117218, 119944, 177848, 219472, 234436, 239888, 355696, 438944, 468872, 479776, 644699, 711392, 937744, 1289398, 1875488, 2578796, 5157592, 10315184, 20630368]

約数ペア:

[(1, 20630368), (2, 10315184), (4, 5157592), (8, 2578796), (11, 1875488), (16, 1289398), (22, 937744), (29, 711392), (32, 644699), (43, 479776), (44, 468872), (47, 438944), (58, 355696), (86, 239888), (88, 234436), (94, 219472), (116, 177848), (172, 119944), (176, 117218), (188, 109736), (232, 88924), (319, 64672), (344, 59972), (352, 58609), (376, 54868), (464, 44462), (473, 43616), (517, 39904), (638, 32336), (688, 29986), (752, 27434), (928, 22231), (946, 21808), (1034, 19952), (1247, 16544), (1276, 16168), (1363, 15136), (1376, 14993), (1504, 13717), (1892, 10904), (2021, 10208), (2068, 9976), (2494, 8272), (2552, 8084), (2726, 7568), (3784, 5452), (4042, 5104), (4136, 4988)]