20597408

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{739}}^1$

素因数の和:829

約数の個数: 48

約数和(自身を含む): 44382240

約数和(自身を除く): 23784832

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 67, 104, 134, 208, 268, 416, 536, 739, 871, 1072, 1478, 1742, 2144, 2956, 3484, 5912, 6968, 9607, 11824, 13936, 19214, 23648, 27872, 38428, 49513, 76856, 99026, 153712, 198052, 307424, 396104, 643669, 792208, 1287338, 1584416, 2574676, 5149352, 10298704, 20597408]

約数ペア:

[(1, 20597408), (2, 10298704), (4, 5149352), (8, 2574676), (13, 1584416), (16, 1287338), (26, 792208), (32, 643669), (52, 396104), (67, 307424), (104, 198052), (134, 153712), (208, 99026), (268, 76856), (416, 49513), (536, 38428), (739, 27872), (871, 23648), (1072, 19214), (1478, 13936), (1742, 11824), (2144, 9607), (2956, 6968), (3484, 5912)]