81604784

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{108517}}^1$

素因数の和:108572

約数の個数: 20

約数和(自身を含む): 161474784

約数和(自身を除く): 79870000

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 108517, 217034, 434068, 868136, 1736272, 5100299, 10200598, 20401196, 40802392, 81604784]

約数ペア:

[(1, 81604784), (2, 40802392), (4, 20401196), (8, 10200598), (16, 5100299), (47, 1736272), (94, 868136), (188, 434068), (376, 217034), (752, 108517)]