17980291120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20432149}}^1$

素因数の和:20432173

約数の個数: 40

約数和(自身を含む): 45604558800

約数和(自身を除く): 27624267680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 20432149, 40864298, 81728596, 102160745, 163457192, 204321490, 224753639, 326914384, 408642980, 449507278, 817285960, 899014556, 1123768195, 1634571920, 1798029112, 2247536390, 3596058224, 4495072780, 8990145560, 17980291120]

約数ペア:

[(1, 17980291120), (2, 8990145560), (4, 4495072780), (5, 3596058224), (8, 2247536390), (10, 1798029112), (11, 1634571920), (16, 1123768195), (20, 899014556), (22, 817285960), (40, 449507278), (44, 408642980), (55, 326914384), (80, 224753639), (88, 204321490), (110, 163457192), (176, 102160745), (220, 81728596), (440, 40864298), (880, 20432149)]