28317255

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{389}}^1$

素因数の和:631

約数の個数: 32

約数和(自身を含む): 47623680

約数和(自身を除く): 19306425

約数列:

[1, 3, 5, 15, 23, 69, 115, 211, 345, 389, 633, 1055, 1167, 1945, 3165, 4853, 5835, 8947, 14559, 24265, 26841, 44735, 72795, 82079, 134205, 246237, 410395, 1231185, 1887817, 5663451, 9439085, 28317255]

約数ペア:

[(1, 28317255), (3, 9439085), (5, 5663451), (15, 1887817), (23, 1231185), (69, 410395), (115, 246237), (211, 134205), (345, 82079), (389, 72795), (633, 44735), (1055, 26841), (1167, 24265), (1945, 14559), (3165, 8947), (4853, 5835)]