81371164

素因数分解:

$2^2\times 7^2\times {\mathrm{415159}}^1$

素因数の和:415177

約数の個数: 18

約数和(自身を含む): 165648840

約数和(自身を除く): 84277676

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 415159, 830318, 1660636, 2906113, 5812226, 11624452, 20342791, 40685582, 81371164]

約数ペア:

[(1, 81371164), (2, 40685582), (4, 20342791), (7, 11624452), (14, 5812226), (28, 2906113), (49, 1660636), (98, 830318), (196, 415159)]