81306988

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{170813}}^1$

素因数の和:170841

約数の個数: 24

約数和(自身を含む): 172180512

約数和(自身を除く): 90873524

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 170813, 341626, 683252, 1195691, 2391382, 2903821, 4782764, 5807642, 11615284, 20326747, 40653494, 81306988]

約数ペア:

[(1, 81306988), (2, 40653494), (4, 20326747), (7, 11615284), (14, 5807642), (17, 4782764), (28, 2903821), (34, 2391382), (68, 1195691), (119, 683252), (238, 341626), (476, 170813)]