20197928440

素因数分解:

$2^3\times 5^1\times {\mathrm{3739}}^1\times {\mathrm{135049}}^1$

素因数の和:138799

約数の個数: 32

約数和(自身を含む): 45457830000

約数和(自身を除く): 25259901560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3739, 7478, 14956, 18695, 29912, 37390, 74780, 135049, 149560, 270098, 540196, 675245, 1080392, 1350490, 2700980, 5401960, 504948211, 1009896422, 2019792844, 2524741055, 4039585688, 5049482110, 10098964220, 20197928440]

約数ペア:

[(1, 20197928440), (2, 10098964220), (4, 5049482110), (5, 4039585688), (8, 2524741055), (10, 2019792844), (20, 1009896422), (40, 504948211), (3739, 5401960), (7478, 2700980), (14956, 1350490), (18695, 1080392), (29912, 675245), (37390, 540196), (74780, 270098), (135049, 149560)]