20185887490

素因数分解:

$2^1\times 5^1\times {\mathrm{4057}}^1\times {\mathrm{497557}}^1$

素因数の和:501621

約数の個数: 16

約数和(自身を含む): 36343626552

約数和(自身を除く): 16157739062

約数列:

[1, 2, 5, 10, 4057, 8114, 20285, 40570, 497557, 995114, 2487785, 4975570, 2018588749, 4037177498, 10092943745, 20185887490]

約数ペア:

[(1, 20185887490), (2, 10092943745), (5, 4037177498), (10, 2018588749), (4057, 4975570), (8114, 2487785), (20285, 995114), (40570, 497557)]