19902272

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1259}}^1$

素因数の和:1303

約数の個数: 56

約数和(自身を含む): 44805600

約数和(自身を除く): 24903328

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 152, 208, 247, 304, 416, 494, 608, 832, 988, 1216, 1259, 1976, 2518, 3952, 5036, 7904, 10072, 15808, 16367, 20144, 23921, 32734, 40288, 47842, 65468, 80576, 95684, 130936, 191368, 261872, 310973, 382736, 523744, 621946, 765472, 1047488, 1243892, 1530944, 2487784, 4975568, 9951136, 19902272]

約数ペア:

[(1, 19902272), (2, 9951136), (4, 4975568), (8, 2487784), (13, 1530944), (16, 1243892), (19, 1047488), (26, 765472), (32, 621946), (38, 523744), (52, 382736), (64, 310973), (76, 261872), (104, 191368), (152, 130936), (208, 95684), (247, 80576), (304, 65468), (416, 47842), (494, 40288), (608, 32734), (832, 23921), (988, 20144), (1216, 16367), (1259, 15808), (1976, 10072), (2518, 7904), (3952, 5036)]