259234040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{498527}}^1$

素因数の和:498551

約数の個数: 32

約数和(自身を含む): 628145280

約数和(自身を除く): 368911240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 498527, 997054, 1994108, 2492635, 3988216, 4985270, 6480851, 9970540, 12961702, 19941080, 25923404, 32404255, 51846808, 64808510, 129617020, 259234040]

約数ペア:

[(1, 259234040), (2, 129617020), (4, 64808510), (5, 51846808), (8, 32404255), (10, 25923404), (13, 19941080), (20, 12961702), (26, 9970540), (40, 6480851), (52, 4985270), (65, 3988216), (104, 2492635), (130, 1994108), (260, 997054), (520, 498527)]