81994814

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{1103}}^1$

素因数の和:1256

約数の個数: 32

約数和(自身を含む): 139898880

約数和(自身を除く): 57904066

約数列:

[1, 2, 11, 22, 31, 62, 109, 218, 341, 682, 1103, 1199, 2206, 2398, 3379, 6758, 12133, 24266, 34193, 37169, 68386, 74338, 120227, 240454, 376123, 752246, 1322497, 2644994, 3727037, 7454074, 40997407, 81994814]

約数ペア:

[(1, 81994814), (2, 40997407), (11, 7454074), (22, 3727037), (31, 2644994), (62, 1322497), (109, 752246), (218, 376123), (341, 240454), (682, 120227), (1103, 74338), (1199, 68386), (2206, 37169), (2398, 34193), (3379, 24266), (6758, 12133)]