20197780940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21487001}}^1$

素因数の和:21487057

約数の個数: 24

約数和(自身を含む): 43317796032

約数和(自身を除く): 23120015092

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 21487001, 42974002, 85948004, 107435005, 214870010, 429740020, 1009889047, 2019778094, 4039556188, 5049445235, 10098890470, 20197780940]

約数ペア:

[(1, 20197780940), (2, 10098890470), (4, 5049445235), (5, 4039556188), (10, 2019778094), (20, 1009889047), (47, 429740020), (94, 214870010), (188, 107435005), (235, 85948004), (470, 42974002), (940, 21487001)]