28318784

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{337}}^1$

素因数の和:463

約数の個数: 56

約数和(自身を含む): 61298328

約数和(自身を除く): 32979544

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 101, 104, 202, 208, 337, 404, 416, 674, 808, 832, 1313, 1348, 1616, 2626, 2696, 3232, 4381, 5252, 5392, 6464, 8762, 10504, 10784, 17524, 21008, 21568, 34037, 35048, 42016, 68074, 70096, 84032, 136148, 140192, 272296, 280384, 442481, 544592, 884962, 1089184, 1769924, 2178368, 3539848, 7079696, 14159392, 28318784]

約数ペア:

[(1, 28318784), (2, 14159392), (4, 7079696), (8, 3539848), (13, 2178368), (16, 1769924), (26, 1089184), (32, 884962), (52, 544592), (64, 442481), (101, 280384), (104, 272296), (202, 140192), (208, 136148), (337, 84032), (404, 70096), (416, 68074), (674, 42016), (808, 35048), (832, 34037), (1313, 21568), (1348, 21008), (1616, 17524), (2626, 10784), (2696, 10504), (3232, 8762), (4381, 6464), (5252, 5392)]