1980788

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{389}}^1$

素因数の和:479

約数の個数: 24

約数和(自身を含む): 3712800

約数和(自身を除く): 1732012

約数列:

[1, 2, 4, 19, 38, 67, 76, 134, 268, 389, 778, 1273, 1556, 2546, 5092, 7391, 14782, 26063, 29564, 52126, 104252, 495197, 990394, 1980788]

約数ペア:

[(1, 1980788), (2, 990394), (4, 495197), (19, 104252), (38, 52126), (67, 29564), (76, 26063), (134, 14782), (268, 7391), (389, 5092), (778, 2546), (1273, 1556)]