260428

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:213

約数の個数: 24

約数和(自身を含む): 532224

約数和(自身を除く): 271796

約数列:

[1, 2, 4, 7, 14, 28, 71, 131, 142, 262, 284, 497, 524, 917, 994, 1834, 1988, 3668, 9301, 18602, 37204, 65107, 130214, 260428]

約数ペア:

[(1, 260428), (2, 130214), (4, 65107), (7, 37204), (14, 18602), (28, 9301), (71, 3668), (131, 1988), (142, 1834), (262, 994), (284, 917), (497, 524)]