20157921130

素因数分解:

$2^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{401}}^1\times {\mathrm{27773}}^1$

素因数の和:28362

約数の個数: 32

約数和(自身を含む): 36577024848

約数和(自身を除く): 16419103718

約数列:

[1, 2, 5, 10, 181, 362, 401, 802, 905, 1810, 2005, 4010, 27773, 55546, 72581, 138865, 145162, 277730, 362905, 725810, 5026913, 10053826, 11136973, 22273946, 25134565, 50269130, 55684865, 111369730, 2015792113, 4031584226, 10078960565, 20157921130]

約数ペア:

[(1, 20157921130), (2, 10078960565), (5, 4031584226), (10, 2015792113), (181, 111369730), (362, 55684865), (401, 50269130), (802, 25134565), (905, 22273946), (1810, 11136973), (2005, 10053826), (4010, 5026913), (27773, 725810), (55546, 362905), (72581, 277730), (138865, 145162)]