20780912

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{41897}}^1$

素因数の和:41936

約数の個数: 20

約数和(自身を含む): 41562816

約数和(自身を除く): 20781904

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 41897, 83794, 167588, 335176, 670352, 1298807, 2597614, 5195228, 10390456, 20780912]

約数ペア:

[(1, 20780912), (2, 10390456), (4, 5195228), (8, 2597614), (16, 1298807), (31, 670352), (62, 335176), (124, 167588), (248, 83794), (496, 41897)]