28720367618

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{823}}^1\times {\mathrm{405781}}^1$

素因数の和:406649

約数の個数: 16

約数和(自身を含む): 44136096576

約数和(自身を除く): 15415728958

約数列:

[1, 2, 43, 86, 823, 1646, 35389, 70778, 405781, 811562, 17448583, 34897166, 333957763, 667915526, 14360183809, 28720367618]

約数ペア:

[(1, 28720367618), (2, 14360183809), (43, 667915526), (86, 333957763), (823, 34897166), (1646, 17448583), (35389, 811562), (70778, 405781)]