20347731280

素因数分解:

$2^4\times 5^1\times {\mathrm{254346641}}^1$

素因数の和:254346654

約数の個数: 20

約数和(自身を含む): 47308475412

約数和(自身を除く): 26960744132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 254346641, 508693282, 1017386564, 1271733205, 2034773128, 2543466410, 4069546256, 5086932820, 10173865640, 20347731280]

約数ペア:

[(1, 20347731280), (2, 10173865640), (4, 5086932820), (5, 4069546256), (8, 2543466410), (10, 2034773128), (16, 1271733205), (20, 1017386564), (40, 508693282), (80, 254346641)]