39991010

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1931}}^1$

素因数の和:2066

約数の個数: 32

約数和(自身を含む): 76507200

約数和(自身を除く): 36516190

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 545, 1090, 1931, 2071, 3862, 4142, 9655, 10355, 19310, 20710, 36689, 73378, 183445, 210479, 366890, 420958, 1052395, 2104790, 3999101, 7998202, 19995505, 39991010]

約数ペア:

[(1, 39991010), (2, 19995505), (5, 7998202), (10, 3999101), (19, 2104790), (38, 1052395), (95, 420958), (109, 366890), (190, 210479), (218, 183445), (545, 73378), (1090, 36689), (1931, 20710), (2071, 19310), (3862, 10355), (4142, 9655)]