20318368

素因数分解:

$2^5\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1487}}^1$

素因数の和:1565

約数の個数: 48

約数和(自身を含む): 46497024

約数和(自身を除く): 26178656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 112, 122, 224, 244, 427, 488, 854, 976, 1487, 1708, 1952, 2974, 3416, 5948, 6832, 10409, 11896, 13664, 20818, 23792, 41636, 47584, 83272, 90707, 166544, 181414, 333088, 362828, 634949, 725656, 1269898, 1451312, 2539796, 2902624, 5079592, 10159184, 20318368]

約数ペア:

[(1, 20318368), (2, 10159184), (4, 5079592), (7, 2902624), (8, 2539796), (14, 1451312), (16, 1269898), (28, 725656), (32, 634949), (56, 362828), (61, 333088), (112, 181414), (122, 166544), (224, 90707), (244, 83272), (427, 47584), (488, 41636), (854, 23792), (976, 20818), (1487, 13664), (1708, 11896), (1952, 10409), (2974, 6832), (3416, 5948)]