20408976010

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{15579371}}^1$

素因数の和:15579509

約数の個数: 16

約数和(自身を含む): 37016587872

約数和(自身を除く): 16607611862

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 15579371, 31158742, 77896855, 155793710, 2040897601, 4081795202, 10204488005, 20408976010]

約数ペア:

[(1, 20408976010), (2, 10204488005), (5, 4081795202), (10, 2040897601), (131, 155793710), (262, 77896855), (655, 31158742), (1310, 15579371)]