81957988

素因数分解:

$2^2\times 7^2\times {\mathrm{271}}^1\times {\mathrm{1543}}^1$

素因数の和:1832

約数の個数: 36

約数和(自身を含む): 167567232

約数和(自身を除く): 85609244

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 271, 542, 1084, 1543, 1897, 3086, 3794, 6172, 7588, 10801, 13279, 21602, 26558, 43204, 53116, 75607, 151214, 302428, 418153, 836306, 1672612, 2927071, 5854142, 11708284, 20489497, 40978994, 81957988]

約数ペア:

[(1, 81957988), (2, 40978994), (4, 20489497), (7, 11708284), (14, 5854142), (28, 2927071), (49, 1672612), (98, 836306), (196, 418153), (271, 302428), (542, 151214), (1084, 75607), (1543, 53116), (1897, 43204), (3086, 26558), (3794, 21602), (6172, 13279), (7588, 10801)]