28128516

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{180311}}^1$

素因数の和:180331

約数の個数: 24

約数和(自身を含む): 70682304

約数和(自身を除く): 42553788

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 180311, 360622, 540933, 721244, 1081866, 2163732, 2344043, 4688086, 7032129, 9376172, 14064258, 28128516]

約数ペア:

[(1, 28128516), (2, 14064258), (3, 9376172), (4, 7032129), (6, 4688086), (12, 2344043), (13, 2163732), (26, 1081866), (39, 721244), (52, 540933), (78, 360622), (156, 180311)]