40905904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{196663}}^1$

素因数の和:196684

約数の個数: 20

約数和(自身を含む): 85352176

約数和(自身を除く): 44446272

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 196663, 393326, 786652, 1573304, 2556619, 3146608, 5113238, 10226476, 20452952, 40905904]

約数ペア:

[(1, 40905904), (2, 20452952), (4, 10226476), (8, 5113238), (13, 3146608), (16, 2556619), (26, 1573304), (52, 786652), (104, 393326), (208, 196663)]