87712990

素因数分解:

$2^1\times 5^1\times {\mathrm{2143}}^1\times {\mathrm{4093}}^1$

素因数の和:6243

約数の個数: 16

約数和(自身を含む): 157995648

約数和(自身を除く): 70282658

約数列:

[1, 2, 5, 10, 2143, 4093, 4286, 8186, 10715, 20465, 21430, 40930, 8771299, 17542598, 43856495, 87712990]

約数ペア:

[(1, 87712990), (2, 43856495), (5, 17542598), (10, 8771299), (2143, 40930), (4093, 21430), (4286, 20465), (8186, 10715)]