28293784

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{457}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 54410400

約数和(自身を除く): 26116616

約数列:

[1, 2, 4, 8, 71, 109, 142, 218, 284, 436, 457, 568, 872, 914, 1828, 3656, 7739, 15478, 30956, 32447, 49813, 61912, 64894, 99626, 129788, 199252, 259576, 398504, 3536723, 7073446, 14146892, 28293784]

約数ペア:

[(1, 28293784), (2, 14146892), (4, 7073446), (8, 3536723), (71, 398504), (109, 259576), (142, 199252), (218, 129788), (284, 99626), (436, 64894), (457, 61912), (568, 49813), (872, 32447), (914, 30956), (1828, 15478), (3656, 7739)]