1286808485

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{1019}}^1$

素因数の和:1265

約数の個数: 32

約数和(自身を含む): 1645056000

約数和(自身を除く): 358247515

約数列:

[1, 5, 23, 79, 115, 139, 395, 695, 1019, 1817, 3197, 5095, 9085, 10981, 15985, 23437, 54905, 80501, 117185, 141641, 252563, 402505, 708205, 1262815, 1851523, 3257743, 9257615, 11189639, 16288715, 55948195, 257361697, 1286808485]

約数ペア:

[(1, 1286808485), (5, 257361697), (23, 55948195), (79, 16288715), (115, 11189639), (139, 9257615), (395, 3257743), (695, 1851523), (1019, 1262815), (1817, 708205), (3197, 402505), (5095, 252563), (9085, 141641), (10981, 117185), (15985, 80501), (23437, 54905)]