18449990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{409}}^1$

素因数の和:776

約数の個数: 32

約数和(自身を含む): 35955360

約数和(自身を除く): 17505370

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 347, 409, 694, 818, 1735, 2045, 3470, 4090, 4511, 5317, 9022, 10634, 22555, 26585, 45110, 53170, 141923, 283846, 709615, 1419230, 1844999, 3689998, 9224995, 18449990]

約数ペア:

[(1, 18449990), (2, 9224995), (5, 3689998), (10, 1844999), (13, 1419230), (26, 709615), (65, 283846), (130, 141923), (347, 53170), (409, 45110), (694, 26585), (818, 22555), (1735, 10634), (2045, 9022), (3470, 5317), (4090, 4511)]