218514688

素因数分解:

$2^8\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1999}}^1$

素因数の和:2083

約数の個数: 72

約数和(自身を含む): 506912000

約数和(自身を除く): 288397312

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 64, 112, 122, 128, 224, 244, 256, 427, 448, 488, 854, 896, 976, 1708, 1792, 1952, 1999, 3416, 3904, 3998, 6832, 7808, 7996, 13664, 13993, 15616, 15992, 27328, 27986, 31984, 54656, 55972, 63968, 109312, 111944, 121939, 127936, 223888, 243878, 255872, 447776, 487756, 511744, 853573, 895552, 975512, 1707146, 1791104, 1951024, 3414292, 3582208, 3902048, 6828584, 7804096, 13657168, 15608192, 27314336, 31216384, 54628672, 109257344, 218514688]

約数ペア:

[(1, 218514688), (2, 109257344), (4, 54628672), (7, 31216384), (8, 27314336), (14, 15608192), (16, 13657168), (28, 7804096), (32, 6828584), (56, 3902048), (61, 3582208), (64, 3414292), (112, 1951024), (122, 1791104), (128, 1707146), (224, 975512), (244, 895552), (256, 853573), (427, 511744), (448, 487756), (488, 447776), (854, 255872), (896, 243878), (976, 223888), (1708, 127936), (1792, 121939), (1952, 111944), (1999, 109312), (3416, 63968), (3904, 55972), (3998, 54656), (6832, 31984), (7808, 27986), (7996, 27328), (13664, 15992), (13993, 15616)]