40128070

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{10007}}^1$

素因数の和:10415

約数の個数: 16

約数和(自身を含む): 72417888

約数和(自身を除く): 32289818

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 10007, 20014, 50035, 100070, 4012807, 8025614, 20064035, 40128070]

約数ペア:

[(1, 40128070), (2, 20064035), (5, 8025614), (10, 4012807), (401, 100070), (802, 50035), (2005, 20014), (4010, 10007)]