20640848

素因数分解:

$2^4\times {\mathrm{179}}^1\times {\mathrm{7207}}^1$

素因数の和:7394

約数の個数: 20

約数和(自身を含む): 40220640

約数和(自身を除く): 19579792

約数列:

[1, 2, 4, 8, 16, 179, 358, 716, 1432, 2864, 7207, 14414, 28828, 57656, 115312, 1290053, 2580106, 5160212, 10320424, 20640848]

約数ペア:

[(1, 20640848), (2, 10320424), (4, 5160212), (8, 2580106), (16, 1290053), (179, 115312), (358, 57656), (716, 28828), (1432, 14414), (2864, 7207)]