19660544

素因数分解:

$2^8\times {\mathrm{61}}^1\times {\mathrm{1259}}^1$

素因数の和:1336

約数の個数: 36

約数和(自身を含む): 39919320

約数和(自身を除く): 20258776

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 488, 976, 1259, 1952, 2518, 3904, 5036, 7808, 10072, 15616, 20144, 40288, 76799, 80576, 153598, 161152, 307196, 322304, 614392, 1228784, 2457568, 4915136, 9830272, 19660544]

約数ペア:

[(1, 19660544), (2, 9830272), (4, 4915136), (8, 2457568), (16, 1228784), (32, 614392), (61, 322304), (64, 307196), (122, 161152), (128, 153598), (244, 80576), (256, 76799), (488, 40288), (976, 20144), (1259, 15616), (1952, 10072), (2518, 7808), (3904, 5036)]