28307986

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1$

素因数の和:719

約数の個数: 48

約数和(自身を含む): 54336960

約数和(自身を除く): 26028974

約数列:

[1, 2, 7, 14, 19, 23, 38, 46, 49, 98, 133, 161, 266, 322, 437, 661, 874, 931, 1127, 1322, 1862, 2254, 3059, 4627, 6118, 9254, 12559, 15203, 21413, 25118, 30406, 32389, 42826, 64778, 87913, 106421, 175826, 212842, 288857, 577714, 615391, 744947, 1230782, 1489894, 2021999, 4043998, 14153993, 28307986]

約数ペア:

[(1, 28307986), (2, 14153993), (7, 4043998), (14, 2021999), (19, 1489894), (23, 1230782), (38, 744947), (46, 615391), (49, 577714), (98, 288857), (133, 212842), (161, 175826), (266, 106421), (322, 87913), (437, 64778), (661, 42826), (874, 32389), (931, 30406), (1127, 25118), (1322, 21413), (1862, 15203), (2254, 12559), (3059, 9254), (4627, 6118)]