10388690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 20306160

約数和(自身を除く): 9917470

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157, 314, 509, 785, 1018, 1570, 2041, 2545, 4082, 5090, 6617, 10205, 13234, 20410, 33085, 66170, 79913, 159826, 399565, 799130, 1038869, 2077738, 5194345, 10388690]

約数ペア:

[(1, 10388690), (2, 5194345), (5, 2077738), (10, 1038869), (13, 799130), (26, 399565), (65, 159826), (130, 79913), (157, 66170), (314, 33085), (509, 20410), (785, 13234), (1018, 10205), (1570, 6617), (2041, 5090), (2545, 4082)]