287456428

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{331171}}^1$

素因数の和:331213

約数の個数: 24

約数和(自身を含む): 593460224

約数和(自身を除く): 306003796

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 331171, 662342, 1324684, 2318197, 4636394, 9272788, 10266301, 20532602, 41065204, 71864107, 143728214, 287456428]

約数ペア:

[(1, 287456428), (2, 143728214), (4, 71864107), (7, 41065204), (14, 20532602), (28, 10266301), (31, 9272788), (62, 4636394), (124, 2318197), (217, 1324684), (434, 662342), (868, 331171)]