55681960

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15641}}^1$

素因数の和:15741

約数の個数: 32

約数和(自身を含む): 126700200

約数和(自身を除く): 71018240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 15641, 31282, 62564, 78205, 125128, 156410, 312820, 625640, 1392049, 2784098, 5568196, 6960245, 11136392, 13920490, 27840980, 55681960]

約数ペア:

[(1, 55681960), (2, 27840980), (4, 13920490), (5, 11136392), (8, 6960245), (10, 5568196), (20, 2784098), (40, 1392049), (89, 625640), (178, 312820), (356, 156410), (445, 125128), (712, 78205), (890, 62564), (1780, 31282), (3560, 15641)]