28078938

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:379

約数の個数: 48

約数和(自身を含む): 62539776

約数和(自身を除く): 34460838

約数列:

[1, 2, 3, 6, 9, 18, 71, 127, 142, 173, 213, 254, 346, 381, 426, 519, 639, 762, 1038, 1143, 1278, 1557, 2286, 3114, 9017, 12283, 18034, 21971, 24566, 27051, 36849, 43942, 54102, 65913, 73698, 81153, 110547, 131826, 162306, 197739, 221094, 395478, 1559941, 3119882, 4679823, 9359646, 14039469, 28078938]

約数ペア:

[(1, 28078938), (2, 14039469), (3, 9359646), (6, 4679823), (9, 3119882), (18, 1559941), (71, 395478), (127, 221094), (142, 197739), (173, 162306), (213, 131826), (254, 110547), (346, 81153), (381, 73698), (426, 65913), (519, 54102), (639, 43942), (762, 36849), (1038, 27051), (1143, 24566), (1278, 21971), (1557, 18034), (2286, 12283), (3114, 9017)]