20980028

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{6733}}^1$

素因数の和:6797

約数の個数: 24

約数和(自身を含む): 39595920

約数和(自身を除く): 18615892

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 6733, 13466, 26932, 127927, 255854, 276053, 511708, 552106, 1104212, 5245007, 10490014, 20980028]

約数ペア:

[(1, 20980028), (2, 10490014), (4, 5245007), (19, 1104212), (38, 552106), (41, 511708), (76, 276053), (82, 255854), (164, 127927), (779, 26932), (1558, 13466), (3116, 6733)]