81797240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{292133}}^1$

素因数の和:292151

約数の個数: 32

約数和(自身を含む): 210336480

約数和(自身を除く): 128539240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 292133, 584266, 1168532, 1460665, 2044931, 2337064, 2921330, 4089862, 5842660, 8179724, 10224655, 11685320, 16359448, 20449310, 40898620, 81797240]

約数ペア:

[(1, 81797240), (2, 40898620), (4, 20449310), (5, 16359448), (7, 11685320), (8, 10224655), (10, 8179724), (14, 5842660), (20, 4089862), (28, 2921330), (35, 2337064), (40, 2044931), (56, 1460665), (70, 1168532), (140, 584266), (280, 292133)]