1289645216

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{2121127}}^1$

素因数の和:2121156

約数の個数: 24

約数和(自身を含む): 2672621280

約数和(自身を除く): 1382976064

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 608, 2121127, 4242254, 8484508, 16969016, 33938032, 40301413, 67876064, 80602826, 161205652, 322411304, 644822608, 1289645216]

約数ペア:

[(1, 1289645216), (2, 644822608), (4, 322411304), (8, 161205652), (16, 80602826), (19, 67876064), (32, 40301413), (38, 33938032), (76, 16969016), (152, 8484508), (304, 4242254), (608, 2121127)]